Home / 12,616.49-18,930.15-5,226.32

Finding the Fourth Proportional to 12,616.49, 18,930.15 and 5,226.32

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Solution

The fourth proportional to 12,616.49, 18,930.15 and 5,226.32 is: 7,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,616.49 : 18,930.15 = 5,226.32 : x
  2. Step 2: Convert to fraction form
    12,616.49/18,930.15 = 5,226.32/x
  3. Step 3: Cross multiply
    12,616.49x = 18,930.15 × 5,226.32
  4. Step 4: Simplify right side
    12,616.49x = 98,934,926.90
  5. Step 5: Solve for x
    x = 98,934,926.90/12,616.49
  6. Step 6: Final answer
    x = 7,841.72

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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.