Home / 19,012.32-28,517.68-4,972.12

Finding the Fourth Proportional to 19,012.32, 28,517.68 and 4,972.12

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Solution

The fourth proportional to 19,012.32, 28,517.68 and 4,972.12 is: 7,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.32 : 28,517.68 = 4,972.12 : x
  2. Step 2: Convert to fraction form
    19,012.32/28,517.68 = 4,972.12/x
  3. Step 3: Cross multiply
    19,012.32x = 28,517.68 × 4,972.12
  4. Step 4: Simplify right side
    19,012.32x = 141,793,389.30
  5. Step 5: Solve for x
    x = 141,793,389.30/19,012.32
  6. Step 6: Final answer
    x = 7,457.97

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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.