Home / 18,392.86-25,382.32-10,009.18

Finding the Fourth Proportional to 18,392.86, 25,382.32 and 10,009.18

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Solution

The fourth proportional to 18,392.86, 25,382.32 and 10,009.18 is: 13,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.86 : 25,382.32 = 10,009.18 : x
  2. Step 2: Convert to fraction form
    18,392.86/25,382.32 = 10,009.18/x
  3. Step 3: Cross multiply
    18,392.86x = 25,382.32 × 10,009.18
  4. Step 4: Simplify right side
    18,392.86x = 254,056,209.70
  5. Step 5: Solve for x
    x = 254,056,209.70/18,392.86
  6. Step 6: Final answer
    x = 13,812.76

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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.