Home / 8,315.02-11,473.20-4,778.38

Finding the Fourth Proportional to 8,315.02, 11,473.20 and 4,778.38

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Solution

The fourth proportional to 8,315.02, 11,473.20 and 4,778.38 is: 6,593.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.02 : 11,473.20 = 4,778.38 : x
  2. Step 2: Convert to fraction form
    8,315.02/11,473.20 = 4,778.38/x
  3. Step 3: Cross multiply
    8,315.02x = 11,473.20 × 4,778.38
  4. Step 4: Simplify right side
    8,315.02x = 54,823,309.42
  5. Step 5: Solve for x
    x = 54,823,309.42/8,315.02
  6. Step 6: Final answer
    x = 6,593.29

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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.