Home / 9,115.04-13,672.85-2,875.11

Finding the Fourth Proportional to 9,115.04, 13,672.85 and 2,875.11

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Solution

The fourth proportional to 9,115.04, 13,672.85 and 2,875.11 is: 4,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.04 : 13,672.85 = 2,875.11 : x
  2. Step 2: Convert to fraction form
    9,115.04/13,672.85 = 2,875.11/x
  3. Step 3: Cross multiply
    9,115.04x = 13,672.85 × 2,875.11
  4. Step 4: Simplify right side
    9,115.04x = 39,310,954.95
  5. Step 5: Solve for x
    x = 39,310,954.95/9,115.04
  6. Step 6: Final answer
    x = 4,312.76

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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.