Home / 15,589.77-21,513.85-8,516.19

Finding the Fourth Proportional to 15,589.77, 21,513.85 and 8,516.19

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Solution

The fourth proportional to 15,589.77, 21,513.85 and 8,516.19 is: 11,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.77 : 21,513.85 = 8,516.19 : x
  2. Step 2: Convert to fraction form
    15,589.77/21,513.85 = 8,516.19/x
  3. Step 3: Cross multiply
    15,589.77x = 21,513.85 × 8,516.19
  4. Step 4: Simplify right side
    15,589.77x = 183,216,034.23
  5. Step 5: Solve for x
    x = 183,216,034.23/15,589.77
  6. Step 6: Final answer
    x = 11,752.32

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Half scale
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Double scale
Find fourth proportional to 15,590.77, 21,515.23 and 8,517.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.