Home / 18,788.76-28,192.86-8,926.20

Finding the Fourth Proportional to 18,788.76, 28,192.86 and 8,926.20

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Solution

The fourth proportional to 18,788.76, 28,192.86 and 8,926.20 is: 13,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.76 : 28,192.86 = 8,926.20 : x
  2. Step 2: Convert to fraction form
    18,788.76/28,192.86 = 8,926.20/x
  3. Step 3: Cross multiply
    18,788.76x = 28,192.86 × 8,926.20
  4. Step 4: Simplify right side
    18,788.76x = 251,655,106.93
  5. Step 5: Solve for x
    x = 251,655,106.93/18,788.76
  6. Step 6: Final answer
    x = 13,393.92

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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.