Home / 15,193.85-20,957.27-13,200.98

Finding the Fourth Proportional to 15,193.85, 20,957.27 and 13,200.98

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Solution

The fourth proportional to 15,193.85, 20,957.27 and 13,200.98 is: 18,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.85 : 20,957.27 = 13,200.98 : x
  2. Step 2: Convert to fraction form
    15,193.85/20,957.27 = 13,200.98/x
  3. Step 3: Cross multiply
    15,193.85x = 20,957.27 × 13,200.98
  4. Step 4: Simplify right side
    15,193.85x = 276,656,331.33
  5. Step 5: Solve for x
    x = 276,656,331.33/15,193.85
  6. Step 6: Final answer
    x = 18,208.45

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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.