Home / 18,841.32-25,995.69-12,130.83

Finding the Fourth Proportional to 18,841.32, 25,995.69 and 12,130.83

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Solution

The fourth proportional to 18,841.32, 25,995.69 and 12,130.83 is: 16,737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.32 : 25,995.69 = 12,130.83 : x
  2. Step 2: Convert to fraction form
    18,841.32/25,995.69 = 12,130.83/x
  3. Step 3: Cross multiply
    18,841.32x = 25,995.69 × 12,130.83
  4. Step 4: Simplify right side
    18,841.32x = 315,349,296.12
  5. Step 5: Solve for x
    x = 315,349,296.12/18,841.32
  6. Step 6: Final answer
    x = 16,737.11

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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.