Home / 12,865.08-17,753.58-7,275.96

Finding the Fourth Proportional to 12,865.08, 17,753.58 and 7,275.96

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Solution

The fourth proportional to 12,865.08, 17,753.58 and 7,275.96 is: 10,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.08 : 17,753.58 = 7,275.96 : x
  2. Step 2: Convert to fraction form
    12,865.08/17,753.58 = 7,275.96/x
  3. Step 3: Cross multiply
    12,865.08x = 17,753.58 × 7,275.96
  4. Step 4: Simplify right side
    12,865.08x = 129,174,337.94
  5. Step 5: Solve for x
    x = 129,174,337.94/12,865.08
  6. Step 6: Final answer
    x = 10,040.69

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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.