Home / 12,218.55-16,862.13-6,913.23

Finding the Fourth Proportional to 12,218.55, 16,862.13 and 6,913.23

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Solution

The fourth proportional to 12,218.55, 16,862.13 and 6,913.23 is: 9,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.55 : 16,862.13 = 6,913.23 : x
  2. Step 2: Convert to fraction form
    12,218.55/16,862.13 = 6,913.23/x
  3. Step 3: Cross multiply
    12,218.55x = 16,862.13 × 6,913.23
  4. Step 4: Simplify right side
    12,218.55x = 116,571,782.98
  5. Step 5: Solve for x
    x = 116,571,782.98/12,218.55
  6. Step 6: Final answer
    x = 9,540.56

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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.