Home / 7,257.02-9,949.47-7,125.80

Finding the Fourth Proportional to 7,257.02, 9,949.47 and 7,125.80

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Solution

The fourth proportional to 7,257.02, 9,949.47 and 7,125.80 is: 9,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.02 : 9,949.47 = 7,125.80 : x
  2. Step 2: Convert to fraction form
    7,257.02/9,949.47 = 7,125.80/x
  3. Step 3: Cross multiply
    7,257.02x = 9,949.47 × 7,125.80
  4. Step 4: Simplify right side
    7,257.02x = 70,897,883.58
  5. Step 5: Solve for x
    x = 70,897,883.58/7,257.02
  6. Step 6: Final answer
    x = 9,769.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.