Home / 12,902.40-19,353.60-4,591.80

Finding the Fourth Proportional to 12,902.40, 19,353.60 and 4,591.80

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Solution

The fourth proportional to 12,902.40, 19,353.60 and 4,591.80 is: 6,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902.40 : 19,353.60 = 4,591.80 : x
  2. Step 2: Convert to fraction form
    12,902.40/19,353.60 = 4,591.80/x
  3. Step 3: Cross multiply
    12,902.40x = 19,353.60 × 4,591.80
  4. Step 4: Simplify right side
    12,902.40x = 88,867,860.48
  5. Step 5: Solve for x
    x = 88,867,860.48/12,902.40
  6. Step 6: Final answer
    x = 6,887.70

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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.