Home / 17,772.18-26,641.78-6,686.21

Finding the Fourth Proportional to 17,772.18, 26,641.78 and 6,686.21

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Solution

The fourth proportional to 17,772.18, 26,641.78 and 6,686.21 is: 10,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,772.18 : 26,641.78 = 6,686.21 : x
  2. Step 2: Convert to fraction form
    17,772.18/26,641.78 = 6,686.21/x
  3. Step 3: Cross multiply
    17,772.18x = 26,641.78 × 6,686.21
  4. Step 4: Simplify right side
    17,772.18x = 178,132,535.85
  5. Step 5: Solve for x
    x = 178,132,535.85/17,772.18
  6. Step 6: Final answer
    x = 10,023.11

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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.