Home / 18,384.32-27,580.80-5,236.88

Finding the Fourth Proportional to 18,384.32, 27,580.80 and 5,236.88

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Solution

The fourth proportional to 18,384.32, 27,580.80 and 5,236.88 is: 7,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.32 : 27,580.80 = 5,236.88 : x
  2. Step 2: Convert to fraction form
    18,384.32/27,580.80 = 5,236.88/x
  3. Step 3: Cross multiply
    18,384.32x = 27,580.80 × 5,236.88
  4. Step 4: Simplify right side
    18,384.32x = 144,437,339.90
  5. Step 5: Solve for x
    x = 144,437,339.90/18,384.32
  6. Step 6: Final answer
    x = 7,856.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.