Home / 15,138.93-22,708.50-5,278.18

Finding the Fourth Proportional to 15,138.93, 22,708.50 and 5,278.18

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Solution

The fourth proportional to 15,138.93, 22,708.50 and 5,278.18 is: 7,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.93 : 22,708.50 = 5,278.18 : x
  2. Step 2: Convert to fraction form
    15,138.93/22,708.50 = 5,278.18/x
  3. Step 3: Cross multiply
    15,138.93x = 22,708.50 × 5,278.18
  4. Step 4: Simplify right side
    15,138.93x = 119,859,410.60
  5. Step 5: Solve for x
    x = 119,859,410.60/15,138.93
  6. Step 6: Final answer
    x = 7,917.30

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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.