Home / 12,845.55-17,726.73-7,180.53

Finding the Fourth Proportional to 12,845.55, 17,726.73 and 7,180.53

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Solution

The fourth proportional to 12,845.55, 17,726.73 and 7,180.53 is: 9,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.55 : 17,726.73 = 7,180.53 : x
  2. Step 2: Convert to fraction form
    12,845.55/17,726.73 = 7,180.53/x
  3. Step 3: Cross multiply
    12,845.55x = 17,726.73 × 7,180.53
  4. Step 4: Simplify right side
    12,845.55x = 127,287,316.57
  5. Step 5: Solve for x
    x = 127,287,316.57/12,845.55
  6. Step 6: Final answer
    x = 9,909.06

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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.