Home / 8,972.69-13,457.41-3,130.97

Finding the Fourth Proportional to 8,972.69, 13,457.41 and 3,130.97

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Solution

The fourth proportional to 8,972.69, 13,457.41 and 3,130.97 is: 4,695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.69 : 13,457.41 = 3,130.97 : x
  2. Step 2: Convert to fraction form
    8,972.69/13,457.41 = 3,130.97/x
  3. Step 3: Cross multiply
    8,972.69x = 13,457.41 × 3,130.97
  4. Step 4: Simplify right side
    8,972.69x = 42,134,671.87
  5. Step 5: Solve for x
    x = 42,134,671.87/8,972.69
  6. Step 6: Final answer
    x = 4,695.88

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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.