Home / 7,619.46-10,499.04-7,122.66

Finding the Fourth Proportional to 7,619.46, 10,499.04 and 7,122.66

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Solution

The fourth proportional to 7,619.46, 10,499.04 and 7,122.66 is: 9,814.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.46 : 10,499.04 = 7,122.66 : x
  2. Step 2: Convert to fraction form
    7,619.46/10,499.04 = 7,122.66/x
  3. Step 3: Cross multiply
    7,619.46x = 10,499.04 × 7,122.66
  4. Step 4: Simplify right side
    7,619.46x = 74,781,092.25
  5. Step 5: Solve for x
    x = 74,781,092.25/7,619.46
  6. Step 6: Final answer
    x = 9,814.49

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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.