Home / 15,589.58-21,513.69-8,516.12

Finding the Fourth Proportional to 15,589.58, 21,513.69 and 8,516.12

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Solution

The fourth proportional to 15,589.58, 21,513.69 and 8,516.12 is: 11,752.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.58 : 21,513.69 = 8,516.12 : x
  2. Step 2: Convert to fraction form
    15,589.58/21,513.69 = 8,516.12/x
  3. Step 3: Cross multiply
    15,589.58x = 21,513.69 × 8,516.12
  4. Step 4: Simplify right side
    15,589.58x = 183,213,058.11
  5. Step 5: Solve for x
    x = 183,213,058.11/15,589.58
  6. Step 6: Final answer
    x = 11,752.28

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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.