Home / 9,124.95-13,687.99-2,885.15

Finding the Fourth Proportional to 9,124.95, 13,687.99 and 2,885.15

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Solution

The fourth proportional to 9,124.95, 13,687.99 and 2,885.15 is: 4,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.95 : 13,687.99 = 2,885.15 : x
  2. Step 2: Convert to fraction form
    9,124.95/13,687.99 = 2,885.15/x
  3. Step 3: Cross multiply
    9,124.95x = 13,687.99 × 2,885.15
  4. Step 4: Simplify right side
    9,124.95x = 39,491,931.36
  5. Step 5: Solve for x
    x = 39,491,931.36/9,124.95
  6. Step 6: Final answer
    x = 4,327.90

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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.