Home / 7,276.40-10,938.90-6,207.20

Finding the Fourth Proportional to 7,276.40, 10,938.90 and 6,207.20

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Solution

The fourth proportional to 7,276.40, 10,938.90 and 6,207.20 is: 9,331.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.40 : 10,938.90 = 6,207.20 : x
  2. Step 2: Convert to fraction form
    7,276.40/10,938.90 = 6,207.20/x
  3. Step 3: Cross multiply
    7,276.40x = 10,938.90 × 6,207.20
  4. Step 4: Simplify right side
    7,276.40x = 67,899,940.08
  5. Step 5: Solve for x
    x = 67,899,940.08/7,276.40
  6. Step 6: Final answer
    x = 9,331.53

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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.