Home / 18,350.16-25,333.70-12,080.76

Finding the Fourth Proportional to 18,350.16, 25,333.70 and 12,080.76

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Solution

The fourth proportional to 18,350.16, 25,333.70 and 12,080.76 is: 16,678.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.16 : 25,333.70 = 12,080.76 : x
  2. Step 2: Convert to fraction form
    18,350.16/25,333.70 = 12,080.76/x
  3. Step 3: Cross multiply
    18,350.16x = 25,333.70 × 12,080.76
  4. Step 4: Simplify right side
    18,350.16x = 306,050,349.61
  5. Step 5: Solve for x
    x = 306,050,349.61/18,350.16
  6. Step 6: Final answer
    x = 16,678.35

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Half scale
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Double scale
Find fourth proportional to 18,351.16, 25,335.08 and 12,081.76
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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.