Home / 11,386.43-17,044.10-8,387.85

Finding the Fourth Proportional to 11,386.43, 17,044.10 and 8,387.85

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Solution

The fourth proportional to 11,386.43, 17,044.10 and 8,387.85 is: 12,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.43 : 17,044.10 = 8,387.85 : x
  2. Step 2: Convert to fraction form
    11,386.43/17,044.10 = 8,387.85/x
  3. Step 3: Cross multiply
    11,386.43x = 17,044.10 × 8,387.85
  4. Step 4: Simplify right side
    11,386.43x = 142,963,354.19
  5. Step 5: Solve for x
    x = 142,963,354.19/11,386.43
  6. Step 6: Final answer
    x = 12,555.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.