Home / 13,638.06-20,473.48-9,242.18

Finding the Fourth Proportional to 13,638.06, 20,473.48 and 9,242.18

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Solution

The fourth proportional to 13,638.06, 20,473.48 and 9,242.18 is: 13,874.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,638.06 : 20,473.48 = 9,242.18 : x
  2. Step 2: Convert to fraction form
    13,638.06/20,473.48 = 9,242.18/x
  3. Step 3: Cross multiply
    13,638.06x = 20,473.48 × 9,242.18
  4. Step 4: Simplify right side
    13,638.06x = 189,219,587.39
  5. Step 5: Solve for x
    x = 189,219,587.39/13,638.06
  6. Step 6: Final answer
    x = 13,874.38

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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.