Home / 8,280.25-11,428.02-5,861.32

Finding the Fourth Proportional to 8,280.25, 11,428.02 and 5,861.32

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Solution

The fourth proportional to 8,280.25, 11,428.02 and 5,861.32 is: 8,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.25 : 11,428.02 = 5,861.32 : x
  2. Step 2: Convert to fraction form
    8,280.25/11,428.02 = 5,861.32/x
  3. Step 3: Cross multiply
    8,280.25x = 11,428.02 × 5,861.32
  4. Step 4: Simplify right side
    8,280.25x = 66,983,253.62
  5. Step 5: Solve for x
    x = 66,983,253.62/8,280.25
  6. Step 6: Final answer
    x = 8,089.52

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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.