Home / 8,970.38-13,457.62-2,731.28

Finding the Fourth Proportional to 8,970.38, 13,457.62 and 2,731.28

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Solution

The fourth proportional to 8,970.38, 13,457.62 and 2,731.28 is: 4,097.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.38 : 13,457.62 = 2,731.28 : x
  2. Step 2: Convert to fraction form
    8,970.38/13,457.62 = 2,731.28/x
  3. Step 3: Cross multiply
    8,970.38x = 13,457.62 × 2,731.28
  4. Step 4: Simplify right side
    8,970.38x = 36,756,528.35
  5. Step 5: Solve for x
    x = 36,756,528.35/8,970.38
  6. Step 6: Final answer
    x = 4,097.54

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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.