Home / 15,129.28-22,698.78-7,343.56

Finding the Fourth Proportional to 15,129.28, 22,698.78 and 7,343.56

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Solution

The fourth proportional to 15,129.28, 22,698.78 and 7,343.56 is: 11,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.28 : 22,698.78 = 7,343.56 : x
  2. Step 2: Convert to fraction form
    15,129.28/22,698.78 = 7,343.56/x
  3. Step 3: Cross multiply
    15,129.28x = 22,698.78 × 7,343.56
  4. Step 4: Simplify right side
    15,129.28x = 166,689,852.86
  5. Step 5: Solve for x
    x = 166,689,852.86/15,129.28
  6. Step 6: Final answer
    x = 11,017.70

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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.