Home / 18,487.64-25,531.58-11,776.28

Finding the Fourth Proportional to 18,487.64, 25,531.58 and 11,776.28

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Solution

The fourth proportional to 18,487.64, 25,531.58 and 11,776.28 is: 16,263.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.64 : 25,531.58 = 11,776.28 : x
  2. Step 2: Convert to fraction form
    18,487.64/25,531.58 = 11,776.28/x
  3. Step 3: Cross multiply
    18,487.64x = 25,531.58 × 11,776.28
  4. Step 4: Simplify right side
    18,487.64x = 300,667,034.92
  5. Step 5: Solve for x
    x = 300,667,034.92/18,487.64
  6. Step 6: Final answer
    x = 16,263.14

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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.