Home / 15,171.04-22,761.90-7,778.98

Finding the Fourth Proportional to 15,171.04, 22,761.90 and 7,778.98

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Solution

The fourth proportional to 15,171.04, 22,761.90 and 7,778.98 is: 11,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.04 : 22,761.90 = 7,778.98 : x
  2. Step 2: Convert to fraction form
    15,171.04/22,761.90 = 7,778.98/x
  3. Step 3: Cross multiply
    15,171.04x = 22,761.90 × 7,778.98
  4. Step 4: Simplify right side
    15,171.04x = 177,064,364.86
  5. Step 5: Solve for x
    x = 177,064,364.86/15,171.04
  6. Step 6: Final answer
    x = 11,671.21

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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.