Home / 18,662.12-25,753.86-10,278.76

Finding the Fourth Proportional to 18,662.12, 25,753.86 and 10,278.76

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Solution

The fourth proportional to 18,662.12, 25,753.86 and 10,278.76 is: 14,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.12 : 25,753.86 = 10,278.76 : x
  2. Step 2: Convert to fraction form
    18,662.12/25,753.86 = 10,278.76/x
  3. Step 3: Cross multiply
    18,662.12x = 25,753.86 × 10,278.76
  4. Step 4: Simplify right side
    18,662.12x = 264,717,746.01
  5. Step 5: Solve for x
    x = 264,717,746.01/18,662.12
  6. Step 6: Final answer
    x = 14,184.76

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Half scale
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Double scale
Find fourth proportional to 18,663.12, 25,755.24 and 10,279.76
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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.