Home / 10,127.15-15,193.15-3,887.21

Finding the Fourth Proportional to 10,127.15, 15,193.15 and 3,887.21

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Solution

The fourth proportional to 10,127.15, 15,193.15 and 3,887.21 is: 5,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.15 : 15,193.15 = 3,887.21 : x
  2. Step 2: Convert to fraction form
    10,127.15/15,193.15 = 3,887.21/x
  3. Step 3: Cross multiply
    10,127.15x = 15,193.15 × 3,887.21
  4. Step 4: Simplify right side
    10,127.15x = 59,058,964.61
  5. Step 5: Solve for x
    x = 59,058,964.61/10,127.15
  6. Step 6: Final answer
    x = 5,831.75

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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.