Home / 12,529.31-17,289.55-6,863.15

Finding the Fourth Proportional to 12,529.31, 17,289.55 and 6,863.15

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Solution

The fourth proportional to 12,529.31, 17,289.55 and 6,863.15 is: 9,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.31 : 17,289.55 = 6,863.15 : x
  2. Step 2: Convert to fraction form
    12,529.31/17,289.55 = 6,863.15/x
  3. Step 3: Cross multiply
    12,529.31x = 17,289.55 × 6,863.15
  4. Step 4: Simplify right side
    12,529.31x = 118,660,654.32
  5. Step 5: Solve for x
    x = 118,660,654.32/12,529.31
  6. Step 6: Final answer
    x = 9,470.65

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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.