Home / 18,340.86-25,310.43-9,957.18

Finding the Fourth Proportional to 18,340.86, 25,310.43 and 9,957.18

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Solution

The fourth proportional to 18,340.86, 25,310.43 and 9,957.18 is: 13,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.86 : 25,310.43 = 9,957.18 : x
  2. Step 2: Convert to fraction form
    18,340.86/25,310.43 = 9,957.18/x
  3. Step 3: Cross multiply
    18,340.86x = 25,310.43 × 9,957.18
  4. Step 4: Simplify right side
    18,340.86x = 252,020,507.39
  5. Step 5: Solve for x
    x = 252,020,507.39/18,340.86
  6. Step 6: Final answer
    x = 13,740.93

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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.