Home / 11,218.02-15,480.72-6,502.20

Finding the Fourth Proportional to 11,218.02, 15,480.72 and 6,502.20

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Solution

The fourth proportional to 11,218.02, 15,480.72 and 6,502.20 is: 8,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.02 : 15,480.72 = 6,502.20 : x
  2. Step 2: Convert to fraction form
    11,218.02/15,480.72 = 6,502.20/x
  3. Step 3: Cross multiply
    11,218.02x = 15,480.72 × 6,502.20
  4. Step 4: Simplify right side
    11,218.02x = 100,658,737.58
  5. Step 5: Solve for x
    x = 100,658,737.58/11,218.02
  6. Step 6: Final answer
    x = 8,972.95

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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.