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Finding the Fourth Proportional to 7,506.70, 10,359.28 and 4,149.70

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Solution

The fourth proportional to 7,506.70, 10,359.28 and 4,149.70 is: 5,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,506.70 : 10,359.28 = 4,149.70 : x
  2. Step 2: Convert to fraction form
    7,506.70/10,359.28 = 4,149.70/x
  3. Step 3: Cross multiply
    7,506.70x = 10,359.28 × 4,149.70
  4. Step 4: Simplify right side
    7,506.70x = 42,987,904.22
  5. Step 5: Solve for x
    x = 42,987,904.22/7,506.70
  6. Step 6: Final answer
    x = 5,726.60

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1.5x scale

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.