Home / 13,678.01-20,523.40-13,456.88

Finding the Fourth Proportional to 13,678.01, 20,523.40 and 13,456.88

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Solution

The fourth proportional to 13,678.01, 20,523.40 and 13,456.88 is: 20,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.01 : 20,523.40 = 13,456.88 : x
  2. Step 2: Convert to fraction form
    13,678.01/20,523.40 = 13,456.88/x
  3. Step 3: Cross multiply
    13,678.01x = 20,523.40 × 13,456.88
  4. Step 4: Simplify right side
    13,678.01x = 276,181,024.99
  5. Step 5: Solve for x
    x = 276,181,024.99/13,678.01
  6. Step 6: Final answer
    x = 20,191.60

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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.