Home / 13,570.38-20,327.22-8,615.52

Finding the Fourth Proportional to 13,570.38, 20,327.22 and 8,615.52

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Solution

The fourth proportional to 13,570.38, 20,327.22 and 8,615.52 is: 12,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.38 : 20,327.22 = 8,615.52 : x
  2. Step 2: Convert to fraction form
    13,570.38/20,327.22 = 8,615.52/x
  3. Step 3: Cross multiply
    13,570.38x = 20,327.22 × 8,615.52
  4. Step 4: Simplify right side
    13,570.38x = 175,129,570.45
  5. Step 5: Solve for x
    x = 175,129,570.45/13,570.38
  6. Step 6: Final answer
    x = 12,905.28

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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.