Home / 15,657.39-21,604.85-8,941.59

Finding the Fourth Proportional to 15,657.39, 21,604.85 and 8,941.59

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Solution

The fourth proportional to 15,657.39, 21,604.85 and 8,941.59 is: 12,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.39 : 21,604.85 = 8,941.59 : x
  2. Step 2: Convert to fraction form
    15,657.39/21,604.85 = 8,941.59/x
  3. Step 3: Cross multiply
    15,657.39x = 21,604.85 × 8,941.59
  4. Step 4: Simplify right side
    15,657.39x = 193,181,724.68
  5. Step 5: Solve for x
    x = 193,181,724.68/15,657.39
  6. Step 6: Final answer
    x = 12,338.05

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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.