Home / 15,948.99-21,986.78-11,218.59

Finding the Fourth Proportional to 15,948.99, 21,986.78 and 11,218.59

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Solution

The fourth proportional to 15,948.99, 21,986.78 and 11,218.59 is: 15,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.99 : 21,986.78 = 11,218.59 : x
  2. Step 2: Convert to fraction form
    15,948.99/21,986.78 = 11,218.59/x
  3. Step 3: Cross multiply
    15,948.99x = 21,986.78 × 11,218.59
  4. Step 4: Simplify right side
    15,948.99x = 246,660,670.24
  5. Step 5: Solve for x
    x = 246,660,670.24/15,948.99
  6. Step 6: Final answer
    x = 15,465.60

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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.