Home / 10,427.08-15,640.04-2,931.14

Finding the Fourth Proportional to 10,427.08, 15,640.04 and 2,931.14

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Solution

The fourth proportional to 10,427.08, 15,640.04 and 2,931.14 is: 4,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.08 : 15,640.04 = 2,931.14 : x
  2. Step 2: Convert to fraction form
    10,427.08/15,640.04 = 2,931.14/x
  3. Step 3: Cross multiply
    10,427.08x = 15,640.04 × 2,931.14
  4. Step 4: Simplify right side
    10,427.08x = 45,843,146.85
  5. Step 5: Solve for x
    x = 45,843,146.85/10,427.08
  6. Step 6: Final answer
    x = 4,396.55

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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.