Home / 19,178.76-28,740.18-8,492.22

Finding the Fourth Proportional to 19,178.76, 28,740.18 and 8,492.22

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Solution

The fourth proportional to 19,178.76, 28,740.18 and 8,492.22 is: 12,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.76 : 28,740.18 = 8,492.22 : x
  2. Step 2: Convert to fraction form
    19,178.76/28,740.18 = 8,492.22/x
  3. Step 3: Cross multiply
    19,178.76x = 28,740.18 × 8,492.22
  4. Step 4: Simplify right side
    19,178.76x = 244,067,931.40
  5. Step 5: Solve for x
    x = 244,067,931.40/19,178.76
  6. Step 6: Final answer
    x = 12,725.95

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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.