Home / 15,948.61-21,986.27-11,218.21

Finding the Fourth Proportional to 15,948.61, 21,986.27 and 11,218.21

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Solution

The fourth proportional to 15,948.61, 21,986.27 and 11,218.21 is: 15,465.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.61 : 21,986.27 = 11,218.21 : x
  2. Step 2: Convert to fraction form
    15,948.61/21,986.27 = 11,218.21/x
  3. Step 3: Cross multiply
    15,948.61x = 21,986.27 × 11,218.21
  4. Step 4: Simplify right side
    15,948.61x = 246,646,524.99
  5. Step 5: Solve for x
    x = 246,646,524.99/15,948.61
  6. Step 6: Final answer
    x = 15,465.08

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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.