Home / 15,612.70-21,546.32-9,242.95

Finding the Fourth Proportional to 15,612.70, 21,546.32 and 9,242.95

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Solution

The fourth proportional to 15,612.70, 21,546.32 and 9,242.95 is: 12,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.70 : 21,546.32 = 9,242.95 : x
  2. Step 2: Convert to fraction form
    15,612.70/21,546.32 = 9,242.95/x
  3. Step 3: Cross multiply
    15,612.70x = 21,546.32 × 9,242.95
  4. Step 4: Simplify right side
    15,612.70x = 199,151,458.36
  5. Step 5: Solve for x
    x = 199,151,458.36/15,612.70
  6. Step 6: Final answer
    x = 12,755.74

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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.