Home / 6,387.30-8,812.03-4,712.70

Finding the Fourth Proportional to 6,387.30, 8,812.03 and 4,712.70

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Solution

The fourth proportional to 6,387.30, 8,812.03 and 4,712.70 is: 6,501.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.30 : 8,812.03 = 4,712.70 : x
  2. Step 2: Convert to fraction form
    6,387.30/8,812.03 = 4,712.70/x
  3. Step 3: Cross multiply
    6,387.30x = 8,812.03 × 4,712.70
  4. Step 4: Simplify right side
    6,387.30x = 41,528,475.04
  5. Step 5: Solve for x
    x = 41,528,475.04/6,387.30
  6. Step 6: Final answer
    x = 6,501.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.