Home / 10,490.20-15,735.30-4,941.70

Finding the Fourth Proportional to 10,490.20, 15,735.30 and 4,941.70

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Solution

The fourth proportional to 10,490.20, 15,735.30 and 4,941.70 is: 7,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.20 : 15,735.30 = 4,941.70 : x
  2. Step 2: Convert to fraction form
    10,490.20/15,735.30 = 4,941.70/x
  3. Step 3: Cross multiply
    10,490.20x = 15,735.30 × 4,941.70
  4. Step 4: Simplify right side
    10,490.20x = 77,759,132.01
  5. Step 5: Solve for x
    x = 77,759,132.01/10,490.20
  6. Step 6: Final answer
    x = 7,412.55

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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.