Home / 12,581.60-18,867.54-5,561.24

Finding the Fourth Proportional to 12,581.60, 18,867.54 and 5,561.24

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Solution

The fourth proportional to 12,581.60, 18,867.54 and 5,561.24 is: 8,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.60 : 18,867.54 = 5,561.24 : x
  2. Step 2: Convert to fraction form
    12,581.60/18,867.54 = 5,561.24/x
  3. Step 3: Cross multiply
    12,581.60x = 18,867.54 × 5,561.24
  4. Step 4: Simplify right side
    12,581.60x = 104,926,918.15
  5. Step 5: Solve for x
    x = 104,926,918.15/12,581.60
  6. Step 6: Final answer
    x = 8,339.71

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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.