Home / 12,475.20-17,215.66-7,442.66

Finding the Fourth Proportional to 12,475.20, 17,215.66 and 7,442.66

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Solution

The fourth proportional to 12,475.20, 17,215.66 and 7,442.66 is: 10,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.20 : 17,215.66 = 7,442.66 : x
  2. Step 2: Convert to fraction form
    12,475.20/17,215.66 = 7,442.66/x
  3. Step 3: Cross multiply
    12,475.20x = 17,215.66 × 7,442.66
  4. Step 4: Simplify right side
    12,475.20x = 128,130,304.06
  5. Step 5: Solve for x
    x = 128,130,304.06/12,475.20
  6. Step 6: Final answer
    x = 10,270.80

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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.