Home / 26,909.15-40,368.71-8,190.86

Finding the Fourth Proportional to 26,909.15, 40,368.71 and 8,190.86

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Solution

The fourth proportional to 26,909.15, 40,368.71 and 8,190.86 is: 12,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.15 : 40,368.71 = 8,190.86 : x
  2. Step 2: Convert to fraction form
    26,909.15/40,368.71 = 8,190.86/x
  3. Step 3: Cross multiply
    26,909.15x = 40,368.71 × 8,190.86
  4. Step 4: Simplify right side
    26,909.15x = 330,654,270.62
  5. Step 5: Solve for x
    x = 330,654,270.62/26,909.15
  6. Step 6: Final answer
    x = 12,287.80

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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.