Home / 18,121.38-25,007.57-10,572.92

Finding the Fourth Proportional to 18,121.38, 25,007.57 and 10,572.92

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Solution

The fourth proportional to 18,121.38, 25,007.57 and 10,572.92 is: 14,590.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.38 : 25,007.57 = 10,572.92 : x
  2. Step 2: Convert to fraction form
    18,121.38/25,007.57 = 10,572.92/x
  3. Step 3: Cross multiply
    18,121.38x = 25,007.57 × 10,572.92
  4. Step 4: Simplify right side
    18,121.38x = 264,403,037.00
  5. Step 5: Solve for x
    x = 264,403,037.00/18,121.38
  6. Step 6: Final answer
    x = 14,590.67

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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.