Home / 18,145.47-25,049.61-14,102.76

Finding the Fourth Proportional to 18,145.47, 25,049.61 and 14,102.76

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Solution

The fourth proportional to 18,145.47, 25,049.61 and 14,102.76 is: 19,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.47 : 25,049.61 = 14,102.76 : x
  2. Step 2: Convert to fraction form
    18,145.47/25,049.61 = 14,102.76/x
  3. Step 3: Cross multiply
    18,145.47x = 25,049.61 × 14,102.76
  4. Step 4: Simplify right side
    18,145.47x = 353,268,637.92
  5. Step 5: Solve for x
    x = 353,268,637.92/18,145.47
  6. Step 6: Final answer
    x = 19,468.70

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Half scale
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Double scale
Find fourth proportional to 18,146.47, 25,050.99 and 14,103.76
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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.