Home / 10,430.91-15,648.80-3,411.18

Finding the Fourth Proportional to 10,430.91, 15,648.80 and 3,411.18

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Solution

The fourth proportional to 10,430.91, 15,648.80 and 3,411.18 is: 5,117.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.91 : 15,648.80 = 3,411.18 : x
  2. Step 2: Convert to fraction form
    10,430.91/15,648.80 = 3,411.18/x
  3. Step 3: Cross multiply
    10,430.91x = 15,648.80 × 3,411.18
  4. Step 4: Simplify right side
    10,430.91x = 53,380,856.53
  5. Step 5: Solve for x
    x = 53,380,856.53/10,430.91
  6. Step 6: Final answer
    x = 5,117.56

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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.