Home / 12,557.47-18,813.25-5,881.72

Finding the Fourth Proportional to 12,557.47, 18,813.25 and 5,881.72

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Solution

The fourth proportional to 12,557.47, 18,813.25 and 5,881.72 is: 8,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.47 : 18,813.25 = 5,881.72 : x
  2. Step 2: Convert to fraction form
    12,557.47/18,813.25 = 5,881.72/x
  3. Step 3: Cross multiply
    12,557.47x = 18,813.25 × 5,881.72
  4. Step 4: Simplify right side
    12,557.47x = 110,654,268.79
  5. Step 5: Solve for x
    x = 110,654,268.79/12,557.47
  6. Step 6: Final answer
    x = 8,811.83

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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.