Home / 19,666.42-27,134.93-11,488.75

Finding the Fourth Proportional to 19,666.42, 27,134.93 and 11,488.75

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Solution

The fourth proportional to 19,666.42, 27,134.93 and 11,488.75 is: 15,851.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.42 : 27,134.93 = 11,488.75 : x
  2. Step 2: Convert to fraction form
    19,666.42/27,134.93 = 11,488.75/x
  3. Step 3: Cross multiply
    19,666.42x = 27,134.93 × 11,488.75
  4. Step 4: Simplify right side
    19,666.42x = 311,746,387.92
  5. Step 5: Solve for x
    x = 311,746,387.92/19,666.42
  6. Step 6: Final answer
    x = 15,851.71

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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.