Home / 11,521.64-17,278.20-9,061.28

Finding the Fourth Proportional to 11,521.64, 17,278.20 and 9,061.28

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Solution

The fourth proportional to 11,521.64, 17,278.20 and 9,061.28 is: 13,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.64 : 17,278.20 = 9,061.28 : x
  2. Step 2: Convert to fraction form
    11,521.64/17,278.20 = 9,061.28/x
  3. Step 3: Cross multiply
    11,521.64x = 17,278.20 × 9,061.28
  4. Step 4: Simplify right side
    11,521.64x = 156,562,608.10
  5. Step 5: Solve for x
    x = 156,562,608.10/11,521.64
  6. Step 6: Final answer
    x = 13,588.57

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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.