Home / 10,280.75-15,419.98-2,885.50

Finding the Fourth Proportional to 10,280.75, 15,419.98 and 2,885.50

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Solution

The fourth proportional to 10,280.75, 15,419.98 and 2,885.50 is: 4,327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.75 : 15,419.98 = 2,885.50 : x
  2. Step 2: Convert to fraction form
    10,280.75/15,419.98 = 2,885.50/x
  3. Step 3: Cross multiply
    10,280.75x = 15,419.98 × 2,885.50
  4. Step 4: Simplify right side
    10,280.75x = 44,494,306.53
  5. Step 5: Solve for x
    x = 44,494,306.53/10,280.75
  6. Step 6: Final answer
    x = 4,327.92

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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.