Home / 8,214.02-11,331.28-4,855.20

Finding the Fourth Proportional to 8,214.02, 11,331.28 and 4,855.20

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Solution

The fourth proportional to 8,214.02, 11,331.28 and 4,855.20 is: 6,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.02 : 11,331.28 = 4,855.20 : x
  2. Step 2: Convert to fraction form
    8,214.02/11,331.28 = 4,855.20/x
  3. Step 3: Cross multiply
    8,214.02x = 11,331.28 × 4,855.20
  4. Step 4: Simplify right side
    8,214.02x = 55,015,630.66
  5. Step 5: Solve for x
    x = 55,015,630.66/8,214.02
  6. Step 6: Final answer
    x = 6,697.77

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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.