Home / 26,117.80-39,176.70-12,995.80

Finding the Fourth Proportional to 26,117.80, 39,176.70 and 12,995.80

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Solution

The fourth proportional to 26,117.80, 39,176.70 and 12,995.80 is: 19,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,117.80 : 39,176.70 = 12,995.80 : x
  2. Step 2: Convert to fraction form
    26,117.80/39,176.70 = 12,995.80/x
  3. Step 3: Cross multiply
    26,117.80x = 39,176.70 × 12,995.80
  4. Step 4: Simplify right side
    26,117.80x = 509,132,557.86
  5. Step 5: Solve for x
    x = 509,132,557.86/26,117.80
  6. Step 6: Final answer
    x = 19,493.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.