Home / 13,742.91-20,602.82-9,570.60

Finding the Fourth Proportional to 13,742.91, 20,602.82 and 9,570.60

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Solution

The fourth proportional to 13,742.91, 20,602.82 and 9,570.60 is: 14,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.91 : 20,602.82 = 9,570.60 : x
  2. Step 2: Convert to fraction form
    13,742.91/20,602.82 = 9,570.60/x
  3. Step 3: Cross multiply
    13,742.91x = 20,602.82 × 9,570.60
  4. Step 4: Simplify right side
    13,742.91x = 197,181,373.02
  5. Step 5: Solve for x
    x = 197,181,373.02/13,742.91
  6. Step 6: Final answer
    x = 14,347.86

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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.