Home / 19,080.66-28,626.12-7,981.50

Finding the Fourth Proportional to 19,080.66, 28,626.12 and 7,981.50

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Solution

The fourth proportional to 19,080.66, 28,626.12 and 7,981.50 is: 11,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.66 : 28,626.12 = 7,981.50 : x
  2. Step 2: Convert to fraction form
    19,080.66/28,626.12 = 7,981.50/x
  3. Step 3: Cross multiply
    19,080.66x = 28,626.12 × 7,981.50
  4. Step 4: Simplify right side
    19,080.66x = 228,479,376.78
  5. Step 5: Solve for x
    x = 228,479,376.78/19,080.66
  6. Step 6: Final answer
    x = 11,974.40

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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.