Home / 15,616.68-21,550.50-9,325.32

Finding the Fourth Proportional to 15,616.68, 21,550.50 and 9,325.32

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Solution

The fourth proportional to 15,616.68, 21,550.50 and 9,325.32 is: 12,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.68 : 21,550.50 = 9,325.32 : x
  2. Step 2: Convert to fraction form
    15,616.68/21,550.50 = 9,325.32/x
  3. Step 3: Cross multiply
    15,616.68x = 21,550.50 × 9,325.32
  4. Step 4: Simplify right side
    15,616.68x = 200,965,308.66
  5. Step 5: Solve for x
    x = 200,965,308.66/15,616.68
  6. Step 6: Final answer
    x = 12,868.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.