Home / 15,682.32-21,641.61-8,609.19

Finding the Fourth Proportional to 15,682.32, 21,641.61 and 8,609.19

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Solution

The fourth proportional to 15,682.32, 21,641.61 and 8,609.19 is: 11,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.32 : 21,641.61 = 8,609.19 : x
  2. Step 2: Convert to fraction form
    15,682.32/21,641.61 = 8,609.19/x
  3. Step 3: Cross multiply
    15,682.32x = 21,641.61 × 8,609.19
  4. Step 4: Simplify right side
    15,682.32x = 186,316,732.40
  5. Step 5: Solve for x
    x = 186,316,732.40/15,682.32
  6. Step 6: Final answer
    x = 11,880.69

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Half scale
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Double scale
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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.