Home / 8,830.40-12,185.84-5,247.76

Finding the Fourth Proportional to 8,830.40, 12,185.84 and 5,247.76

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Solution

The fourth proportional to 8,830.40, 12,185.84 and 5,247.76 is: 7,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.40 : 12,185.84 = 5,247.76 : x
  2. Step 2: Convert to fraction form
    8,830.40/12,185.84 = 5,247.76/x
  3. Step 3: Cross multiply
    8,830.40x = 12,185.84 × 5,247.76
  4. Step 4: Simplify right side
    8,830.40x = 63,948,363.72
  5. Step 5: Solve for x
    x = 63,948,363.72/8,830.40
  6. Step 6: Final answer
    x = 7,241.84

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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.