Home / 18,624.32-25,680.52-13,579.64

Finding the Fourth Proportional to 18,624.32, 25,680.52 and 13,579.64

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Solution

The fourth proportional to 18,624.32, 25,680.52 and 13,579.64 is: 18,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.32 : 25,680.52 = 13,579.64 : x
  2. Step 2: Convert to fraction form
    18,624.32/25,680.52 = 13,579.64/x
  3. Step 3: Cross multiply
    18,624.32x = 25,680.52 × 13,579.64
  4. Step 4: Simplify right side
    18,624.32x = 348,732,216.61
  5. Step 5: Solve for x
    x = 348,732,216.61/18,624.32
  6. Step 6: Final answer
    x = 18,724.56

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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.