Home / 12,867.48-17,760.46-7,281.72

Finding the Fourth Proportional to 12,867.48, 17,760.46 and 7,281.72

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Solution

The fourth proportional to 12,867.48, 17,760.46 and 7,281.72 is: 10,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.48 : 17,760.46 = 7,281.72 : x
  2. Step 2: Convert to fraction form
    12,867.48/17,760.46 = 7,281.72/x
  3. Step 3: Cross multiply
    12,867.48x = 17,760.46 × 7,281.72
  4. Step 4: Simplify right side
    12,867.48x = 129,326,696.79
  5. Step 5: Solve for x
    x = 129,326,696.79/12,867.48
  6. Step 6: Final answer
    x = 10,050.66

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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.