Home / 18,668.28-25,763.50-10,712.76

Finding the Fourth Proportional to 18,668.28, 25,763.50 and 10,712.76

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Solution

The fourth proportional to 18,668.28, 25,763.50 and 10,712.76 is: 14,784.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.28 : 25,763.50 = 10,712.76 : x
  2. Step 2: Convert to fraction form
    18,668.28/25,763.50 = 10,712.76/x
  3. Step 3: Cross multiply
    18,668.28x = 25,763.50 × 10,712.76
  4. Step 4: Simplify right side
    18,668.28x = 275,998,192.26
  5. Step 5: Solve for x
    x = 275,998,192.26/18,668.28
  6. Step 6: Final answer
    x = 14,784.34

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Half scale
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Double scale
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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.