Home / 12,445.26-17,174.07-7,140.17

Finding the Fourth Proportional to 12,445.26, 17,174.07 and 7,140.17

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Solution

The fourth proportional to 12,445.26, 17,174.07 and 7,140.17 is: 9,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.26 : 17,174.07 = 7,140.17 : x
  2. Step 2: Convert to fraction form
    12,445.26/17,174.07 = 7,140.17/x
  3. Step 3: Cross multiply
    12,445.26x = 17,174.07 × 7,140.17
  4. Step 4: Simplify right side
    12,445.26x = 122,625,693.52
  5. Step 5: Solve for x
    x = 122,625,693.52/12,445.26
  6. Step 6: Final answer
    x = 9,853.20

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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.