Home / 18,205.52-25,123.55-10,247.76

Finding the Fourth Proportional to 18,205.52, 25,123.55 and 10,247.76

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Solution

The fourth proportional to 18,205.52, 25,123.55 and 10,247.76 is: 14,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.52 : 25,123.55 = 10,247.76 : x
  2. Step 2: Convert to fraction form
    18,205.52/25,123.55 = 10,247.76/x
  3. Step 3: Cross multiply
    18,205.52x = 25,123.55 × 10,247.76
  4. Step 4: Simplify right side
    18,205.52x = 257,460,059.51
  5. Step 5: Solve for x
    x = 257,460,059.51/18,205.52
  6. Step 6: Final answer
    x = 14,141.87

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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.