Home / 7,011.28-10,517.04-1,817.20

Finding the Fourth Proportional to 7,011.28, 10,517.04 and 1,817.20

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Solution

The fourth proportional to 7,011.28, 10,517.04 and 1,817.20 is: 2,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.28 : 10,517.04 = 1,817.20 : x
  2. Step 2: Convert to fraction form
    7,011.28/10,517.04 = 1,817.20/x
  3. Step 3: Cross multiply
    7,011.28x = 10,517.04 × 1,817.20
  4. Step 4: Simplify right side
    7,011.28x = 19,111,565.09
  5. Step 5: Solve for x
    x = 19,111,565.09/7,011.28
  6. Step 6: Final answer
    x = 2,725.83

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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.