Home / 10,307.12-15,462.39-3,380

Finding the Fourth Proportional to 10,307.12, 15,462.39 and 3,380

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Solution

The fourth proportional to 10,307.12, 15,462.39 and 3,380 is: 5,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.12 : 15,462.39 = 3,380 : x
  2. Step 2: Convert to fraction form
    10,307.12/15,462.39 = 3,380/x
  3. Step 3: Cross multiply
    10,307.12x = 15,462.39 × 3,380
  4. Step 4: Simplify right side
    10,307.12x = 52,262,878.20
  5. Step 5: Solve for x
    x = 52,262,878.20/10,307.12
  6. Step 6: Final answer
    x = 5,070.56

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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.