Home / 7,411.68-11,117.39-1,865.03

Finding the Fourth Proportional to 7,411.68, 11,117.39 and 1,865.03

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Solution

The fourth proportional to 7,411.68, 11,117.39 and 1,865.03 is: 2,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.68 : 11,117.39 = 1,865.03 : x
  2. Step 2: Convert to fraction form
    7,411.68/11,117.39 = 1,865.03/x
  3. Step 3: Cross multiply
    7,411.68x = 11,117.39 × 1,865.03
  4. Step 4: Simplify right side
    7,411.68x = 20,734,200.96
  5. Step 5: Solve for x
    x = 20,734,200.96/7,411.68
  6. Step 6: Final answer
    x = 2,797.50

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Similar ratio
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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.