Home / 13,648.23-18,833.11-7,679.80

Finding the Fourth Proportional to 13,648.23, 18,833.11 and 7,679.80

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Solution

The fourth proportional to 13,648.23, 18,833.11 and 7,679.80 is: 10,597.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.23 : 18,833.11 = 7,679.80 : x
  2. Step 2: Convert to fraction form
    13,648.23/18,833.11 = 7,679.80/x
  3. Step 3: Cross multiply
    13,648.23x = 18,833.11 × 7,679.80
  4. Step 4: Simplify right side
    13,648.23x = 144,634,416.58
  5. Step 5: Solve for x
    x = 144,634,416.58/13,648.23
  6. Step 6: Final answer
    x = 10,597.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.