Home / 10,312.71-15,470.82-3,647.36

Finding the Fourth Proportional to 10,312.71, 15,470.82 and 3,647.36

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Solution

The fourth proportional to 10,312.71, 15,470.82 and 3,647.36 is: 5,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.71 : 15,470.82 = 3,647.36 : x
  2. Step 2: Convert to fraction form
    10,312.71/15,470.82 = 3,647.36/x
  3. Step 3: Cross multiply
    10,312.71x = 15,470.82 × 3,647.36
  4. Step 4: Simplify right side
    10,312.71x = 56,427,572.68
  5. Step 5: Solve for x
    x = 56,427,572.68/10,312.71
  6. Step 6: Final answer
    x = 5,471.65

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1.5x scale

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.