Home / 12,288.64-18,437.28-4,498.24

Finding the Fourth Proportional to 12,288.64, 18,437.28 and 4,498.24

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Solution

The fourth proportional to 12,288.64, 18,437.28 and 4,498.24 is: 6,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.64 : 18,437.28 = 4,498.24 : x
  2. Step 2: Convert to fraction form
    12,288.64/18,437.28 = 4,498.24/x
  3. Step 3: Cross multiply
    12,288.64x = 18,437.28 × 4,498.24
  4. Step 4: Simplify right side
    12,288.64x = 82,935,310.39
  5. Step 5: Solve for x
    x = 82,935,310.39/12,288.64
  6. Step 6: Final answer
    x = 6,748.94

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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.