Home / 10,087.66-15,120.28-7,614.46

Finding the Fourth Proportional to 10,087.66, 15,120.28 and 7,614.46

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Solution

The fourth proportional to 10,087.66, 15,120.28 and 7,614.46 is: 11,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.66 : 15,120.28 = 7,614.46 : x
  2. Step 2: Convert to fraction form
    10,087.66/15,120.28 = 7,614.46/x
  3. Step 3: Cross multiply
    10,087.66x = 15,120.28 × 7,614.46
  4. Step 4: Simplify right side
    10,087.66x = 115,132,767.25
  5. Step 5: Solve for x
    x = 115,132,767.25/10,087.66
  6. Step 6: Final answer
    x = 11,413.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.