Home / 13,758.30-20,637.45-7,910.10

Finding the Fourth Proportional to 13,758.30, 20,637.45 and 7,910.10

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Solution

The fourth proportional to 13,758.30, 20,637.45 and 7,910.10 is: 11,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.30 : 20,637.45 = 7,910.10 : x
  2. Step 2: Convert to fraction form
    13,758.30/20,637.45 = 7,910.10/x
  3. Step 3: Cross multiply
    13,758.30x = 20,637.45 × 7,910.10
  4. Step 4: Simplify right side
    13,758.30x = 163,244,293.25
  5. Step 5: Solve for x
    x = 163,244,293.25/13,758.30
  6. Step 6: Final answer
    x = 11,865.15

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Similar ratio
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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.