Home / 12,560.76-17,323.80-11,145.48

Finding the Fourth Proportional to 12,560.76, 17,323.80 and 11,145.48

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Solution

The fourth proportional to 12,560.76, 17,323.80 and 11,145.48 is: 15,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.76 : 17,323.80 = 11,145.48 : x
  2. Step 2: Convert to fraction form
    12,560.76/17,323.80 = 11,145.48/x
  3. Step 3: Cross multiply
    12,560.76x = 17,323.80 × 11,145.48
  4. Step 4: Simplify right side
    12,560.76x = 193,082,066.42
  5. Step 5: Solve for x
    x = 193,082,066.42/12,560.76
  6. Step 6: Final answer
    x = 15,371.85

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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.