Home / 7,500.80-10,355.45-6,670.35

Finding the Fourth Proportional to 7,500.80, 10,355.45 and 6,670.35

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Solution

The fourth proportional to 7,500.80, 10,355.45 and 6,670.35 is: 9,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,500.80 : 10,355.45 = 6,670.35 : x
  2. Step 2: Convert to fraction form
    7,500.80/10,355.45 = 6,670.35/x
  3. Step 3: Cross multiply
    7,500.80x = 10,355.45 × 6,670.35
  4. Step 4: Simplify right side
    7,500.80x = 69,074,442.56
  5. Step 5: Solve for x
    x = 69,074,442.56/7,500.80
  6. Step 6: Final answer
    x = 9,208.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.