Home / 18,765.28-25,894.80-10,382.08

Finding the Fourth Proportional to 18,765.28, 25,894.80 and 10,382.08

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Solution

The fourth proportional to 18,765.28, 25,894.80 and 10,382.08 is: 14,326.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.28 : 25,894.80 = 10,382.08 : x
  2. Step 2: Convert to fraction form
    18,765.28/25,894.80 = 10,382.08/x
  3. Step 3: Cross multiply
    18,765.28x = 25,894.80 × 10,382.08
  4. Step 4: Simplify right side
    18,765.28x = 268,841,885.18
  5. Step 5: Solve for x
    x = 268,841,885.18/18,765.28
  6. Step 6: Final answer
    x = 14,326.56

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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.