Home / 19,668.39-27,142.04-10,715.96

Finding the Fourth Proportional to 19,668.39, 27,142.04 and 10,715.96

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Solution

The fourth proportional to 19,668.39, 27,142.04 and 10,715.96 is: 14,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.39 : 27,142.04 = 10,715.96 : x
  2. Step 2: Convert to fraction form
    19,668.39/27,142.04 = 10,715.96/x
  3. Step 3: Cross multiply
    19,668.39x = 27,142.04 × 10,715.96
  4. Step 4: Simplify right side
    19,668.39x = 290,852,934.82
  5. Step 5: Solve for x
    x = 290,852,934.82/19,668.39
  6. Step 6: Final answer
    x = 14,787.84

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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.