Home / 15,150.78-22,713.21-9,945.18

Finding the Fourth Proportional to 15,150.78, 22,713.21 and 9,945.18

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Solution

The fourth proportional to 15,150.78, 22,713.21 and 9,945.18 is: 14,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.78 : 22,713.21 = 9,945.18 : x
  2. Step 2: Convert to fraction form
    15,150.78/22,713.21 = 9,945.18/x
  3. Step 3: Cross multiply
    15,150.78x = 22,713.21 × 9,945.18
  4. Step 4: Simplify right side
    15,150.78x = 225,886,961.83
  5. Step 5: Solve for x
    x = 225,886,961.83/15,150.78
  6. Step 6: Final answer
    x = 14,909.26

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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.