Home / 15,947.99-21,985.41-11,217.59

Finding the Fourth Proportional to 15,947.99, 21,985.41 and 11,217.59

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Solution

The fourth proportional to 15,947.99, 21,985.41 and 11,217.59 is: 15,464.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,947.99 : 21,985.41 = 11,217.59 : x
  2. Step 2: Convert to fraction form
    15,947.99/21,985.41 = 11,217.59/x
  3. Step 3: Cross multiply
    15,947.99x = 21,985.41 × 11,217.59
  4. Step 4: Simplify right side
    15,947.99x = 246,623,149.35
  5. Step 5: Solve for x
    x = 246,623,149.35/15,947.99
  6. Step 6: Final answer
    x = 15,464.22

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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.