Home / 10,470.24-14,447.54-6,489.90

Finding the Fourth Proportional to 10,470.24, 14,447.54 and 6,489.90

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Solution

The fourth proportional to 10,470.24, 14,447.54 and 6,489.90 is: 8,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.24 : 14,447.54 = 6,489.90 : x
  2. Step 2: Convert to fraction form
    10,470.24/14,447.54 = 6,489.90/x
  3. Step 3: Cross multiply
    10,470.24x = 14,447.54 × 6,489.90
  4. Step 4: Simplify right side
    10,470.24x = 93,763,057.40
  5. Step 5: Solve for x
    x = 93,763,057.40/10,470.24
  6. Step 6: Final answer
    x = 8,955.20

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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.