Home / 12,561.32-17,336.10-6,972.68

Finding the Fourth Proportional to 12,561.32, 17,336.10 and 6,972.68

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Solution

The fourth proportional to 12,561.32, 17,336.10 and 6,972.68 is: 9,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.32 : 17,336.10 = 6,972.68 : x
  2. Step 2: Convert to fraction form
    12,561.32/17,336.10 = 6,972.68/x
  3. Step 3: Cross multiply
    12,561.32x = 17,336.10 × 6,972.68
  4. Step 4: Simplify right side
    12,561.32x = 120,879,077.75
  5. Step 5: Solve for x
    x = 120,879,077.75/12,561.32
  6. Step 6: Final answer
    x = 9,623.12

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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.