Home / 18,127.25-25,012.13-10,955.70

Finding the Fourth Proportional to 18,127.25, 25,012.13 and 10,955.70

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Solution

The fourth proportional to 18,127.25, 25,012.13 and 10,955.70 is: 15,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.25 : 25,012.13 = 10,955.70 : x
  2. Step 2: Convert to fraction form
    18,127.25/25,012.13 = 10,955.70/x
  3. Step 3: Cross multiply
    18,127.25x = 25,012.13 × 10,955.70
  4. Step 4: Simplify right side
    18,127.25x = 274,025,337.86
  5. Step 5: Solve for x
    x = 274,025,337.86/18,127.25
  6. Step 6: Final answer
    x = 15,116.77

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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.