Home / 26,486.10-39,729.15-8,957.28

Finding the Fourth Proportional to 26,486.10, 39,729.15 and 8,957.28

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Solution

The fourth proportional to 26,486.10, 39,729.15 and 8,957.28 is: 13,435.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,486.10 : 39,729.15 = 8,957.28 : x
  2. Step 2: Convert to fraction form
    26,486.10/39,729.15 = 8,957.28/x
  3. Step 3: Cross multiply
    26,486.10x = 39,729.15 × 8,957.28
  4. Step 4: Simplify right side
    26,486.10x = 355,865,120.71
  5. Step 5: Solve for x
    x = 355,865,120.71/26,486.10
  6. Step 6: Final answer
    x = 13,435.92

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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.