Home / 9,327.02-12,845.20-7,740.50

Finding the Fourth Proportional to 9,327.02, 12,845.20 and 7,740.50

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Solution

The fourth proportional to 9,327.02, 12,845.20 and 7,740.50 is: 10,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.02 : 12,845.20 = 7,740.50 : x
  2. Step 2: Convert to fraction form
    9,327.02/12,845.20 = 7,740.50/x
  3. Step 3: Cross multiply
    9,327.02x = 12,845.20 × 7,740.50
  4. Step 4: Simplify right side
    9,327.02x = 99,428,231.90
  5. Step 5: Solve for x
    x = 99,428,231.90/9,327.02
  6. Step 6: Final answer
    x = 10,660.24

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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.