Home / 15,734.57-21,720.50-11,250.53

Finding the Fourth Proportional to 15,734.57, 21,720.50 and 11,250.53

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Solution

The fourth proportional to 15,734.57, 21,720.50 and 11,250.53 is: 15,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,734.57 : 21,720.50 = 11,250.53 : x
  2. Step 2: Convert to fraction form
    15,734.57/21,720.50 = 11,250.53/x
  3. Step 3: Cross multiply
    15,734.57x = 21,720.50 × 11,250.53
  4. Step 4: Simplify right side
    15,734.57x = 244,367,056.39
  5. Step 5: Solve for x
    x = 244,367,056.39/15,734.57
  6. Step 6: Final answer
    x = 15,530.59

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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.