Home / 19,658.64-27,129.52-11,275.14

Finding the Fourth Proportional to 19,658.64, 27,129.52 and 11,275.14

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Solution

The fourth proportional to 19,658.64, 27,129.52 and 11,275.14 is: 15,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658.64 : 27,129.52 = 11,275.14 : x
  2. Step 2: Convert to fraction form
    19,658.64/27,129.52 = 11,275.14/x
  3. Step 3: Cross multiply
    19,658.64x = 27,129.52 × 11,275.14
  4. Step 4: Simplify right side
    19,658.64x = 305,889,136.13
  5. Step 5: Solve for x
    x = 305,889,136.13/19,658.64
  6. Step 6: Final answer
    x = 15,560.04

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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.