Home / 15,326.28-21,152.14-8,612.19

Finding the Fourth Proportional to 15,326.28, 21,152.14 and 8,612.19

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Solution

The fourth proportional to 15,326.28, 21,152.14 and 8,612.19 is: 11,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.28 : 21,152.14 = 8,612.19 : x
  2. Step 2: Convert to fraction form
    15,326.28/21,152.14 = 8,612.19/x
  3. Step 3: Cross multiply
    15,326.28x = 21,152.14 × 8,612.19
  4. Step 4: Simplify right side
    15,326.28x = 182,166,227.06
  5. Step 5: Solve for x
    x = 182,166,227.06/15,326.28
  6. Step 6: Final answer
    x = 11,885.87

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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.