Home / 7,122.33-10,728.45-6,581.05

Finding the Fourth Proportional to 7,122.33, 10,728.45 and 6,581.05

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Solution

The fourth proportional to 7,122.33, 10,728.45 and 6,581.05 is: 9,913.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.33 : 10,728.45 = 6,581.05 : x
  2. Step 2: Convert to fraction form
    7,122.33/10,728.45 = 6,581.05/x
  3. Step 3: Cross multiply
    7,122.33x = 10,728.45 × 6,581.05
  4. Step 4: Simplify right side
    7,122.33x = 70,604,439.05
  5. Step 5: Solve for x
    x = 70,604,439.05/7,122.33
  6. Step 6: Final answer
    x = 9,913.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.