Home / 8,519.40-11,753.31-5,373.75

Finding the Fourth Proportional to 8,519.40, 11,753.31 and 5,373.75

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Solution

The fourth proportional to 8,519.40, 11,753.31 and 5,373.75 is: 7,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.40 : 11,753.31 = 5,373.75 : x
  2. Step 2: Convert to fraction form
    8,519.40/11,753.31 = 5,373.75/x
  3. Step 3: Cross multiply
    8,519.40x = 11,753.31 × 5,373.75
  4. Step 4: Simplify right side
    8,519.40x = 63,159,349.61
  5. Step 5: Solve for x
    x = 63,159,349.61/8,519.40
  6. Step 6: Final answer
    x = 7,413.59

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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.