Home / 15,539.92-21,445.17-8,466.40

Finding the Fourth Proportional to 15,539.92, 21,445.17 and 8,466.40

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Solution

The fourth proportional to 15,539.92, 21,445.17 and 8,466.40 is: 11,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.92 : 21,445.17 = 8,466.40 : x
  2. Step 2: Convert to fraction form
    15,539.92/21,445.17 = 8,466.40/x
  3. Step 3: Cross multiply
    15,539.92x = 21,445.17 × 8,466.40
  4. Step 4: Simplify right side
    15,539.92x = 181,563,387.29
  5. Step 5: Solve for x
    x = 181,563,387.29/15,539.92
  6. Step 6: Final answer
    x = 11,683.68

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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.