Home / 15,336.71-21,164.17-8,622.62

Finding the Fourth Proportional to 15,336.71, 21,164.17 and 8,622.62

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Solution

The fourth proportional to 15,336.71, 21,164.17 and 8,622.62 is: 11,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.71 : 21,164.17 = 8,622.62 : x
  2. Step 2: Convert to fraction form
    15,336.71/21,164.17 = 8,622.62/x
  3. Step 3: Cross multiply
    15,336.71x = 21,164.17 × 8,622.62
  4. Step 4: Simplify right side
    15,336.71x = 182,490,595.53
  5. Step 5: Solve for x
    x = 182,490,595.53/15,336.71
  6. Step 6: Final answer
    x = 11,898.94

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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.