Home / 16,860.20-25,287.90-5,767.40

Finding the Fourth Proportional to 16,860.20, 25,287.90 and 5,767.40

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Solution

The fourth proportional to 16,860.20, 25,287.90 and 5,767.40 is: 8,650.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,860.20 : 25,287.90 = 5,767.40 : x
  2. Step 2: Convert to fraction form
    16,860.20/25,287.90 = 5,767.40/x
  3. Step 3: Cross multiply
    16,860.20x = 25,287.90 × 5,767.40
  4. Step 4: Simplify right side
    16,860.20x = 145,845,434.46
  5. Step 5: Solve for x
    x = 145,845,434.46/16,860.20
  6. Step 6: Final answer
    x = 8,650.28

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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.