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Finding the Fourth Proportional to 10,410.78, 15,616.17 and 3,015.30

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Solution

The fourth proportional to 10,410.78, 15,616.17 and 3,015.30 is: 4,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,410.78 : 15,616.17 = 3,015.30 : x
  2. Step 2: Convert to fraction form
    10,410.78/15,616.17 = 3,015.30/x
  3. Step 3: Cross multiply
    10,410.78x = 15,616.17 × 3,015.30
  4. Step 4: Simplify right side
    10,410.78x = 47,087,437.40
  5. Step 5: Solve for x
    x = 47,087,437.40/10,410.78
  6. Step 6: Final answer
    x = 4,522.95

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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.