Home / 10,040.47-15,065.87-4,781.44

Finding the Fourth Proportional to 10,040.47, 15,065.87 and 4,781.44

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Solution

The fourth proportional to 10,040.47, 15,065.87 and 4,781.44 is: 7,174.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.47 : 15,065.87 = 4,781.44 : x
  2. Step 2: Convert to fraction form
    10,040.47/15,065.87 = 4,781.44/x
  3. Step 3: Cross multiply
    10,040.47x = 15,065.87 × 4,781.44
  4. Step 4: Simplify right side
    10,040.47x = 72,036,603.97
  5. Step 5: Solve for x
    x = 72,036,603.97/10,040.47
  6. Step 6: Final answer
    x = 7,174.62

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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.