Home / 10,280.48-15,400.17-4,726.21

Finding the Fourth Proportional to 10,280.48, 15,400.17 and 4,726.21

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Solution

The fourth proportional to 10,280.48, 15,400.17 and 4,726.21 is: 7,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.48 : 15,400.17 = 4,726.21 : x
  2. Step 2: Convert to fraction form
    10,280.48/15,400.17 = 4,726.21/x
  3. Step 3: Cross multiply
    10,280.48x = 15,400.17 × 4,726.21
  4. Step 4: Simplify right side
    10,280.48x = 72,784,413.82
  5. Step 5: Solve for x
    x = 72,784,413.82/10,280.48
  6. Step 6: Final answer
    x = 7,079.87

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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.