Home / 10,320.54-15,480.78-3,746.70

Finding the Fourth Proportional to 10,320.54, 15,480.78 and 3,746.70

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Solution

The fourth proportional to 10,320.54, 15,480.78 and 3,746.70 is: 5,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.54 : 15,480.78 = 3,746.70 : x
  2. Step 2: Convert to fraction form
    10,320.54/15,480.78 = 3,746.70/x
  3. Step 3: Cross multiply
    10,320.54x = 15,480.78 × 3,746.70
  4. Step 4: Simplify right side
    10,320.54x = 58,001,838.43
  5. Step 5: Solve for x
    x = 58,001,838.43/10,320.54
  6. Step 6: Final answer
    x = 5,620.04

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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.