Home / 12,570.60-17,347.40-8,591.62

Finding the Fourth Proportional to 12,570.60, 17,347.40 and 8,591.62

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Solution

The fourth proportional to 12,570.60, 17,347.40 and 8,591.62 is: 11,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.60 : 17,347.40 = 8,591.62 : x
  2. Step 2: Convert to fraction form
    12,570.60/17,347.40 = 8,591.62/x
  3. Step 3: Cross multiply
    12,570.60x = 17,347.40 × 8,591.62
  4. Step 4: Simplify right side
    12,570.60x = 149,042,268.79
  5. Step 5: Solve for x
    x = 149,042,268.79/12,570.60
  6. Step 6: Final answer
    x = 11,856.42

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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.