Home / 7,788.02-10,753.44-5,139.20

Finding the Fourth Proportional to 7,788.02, 10,753.44 and 5,139.20

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Solution

The fourth proportional to 7,788.02, 10,753.44 and 5,139.20 is: 7,096.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.02 : 10,753.44 = 5,139.20 : x
  2. Step 2: Convert to fraction form
    7,788.02/10,753.44 = 5,139.20/x
  3. Step 3: Cross multiply
    7,788.02x = 10,753.44 × 5,139.20
  4. Step 4: Simplify right side
    7,788.02x = 55,264,078.85
  5. Step 5: Solve for x
    x = 55,264,078.85/7,788.02
  6. Step 6: Final answer
    x = 7,096.04

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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.