Home / 15,193.42-20,967.97-8,480.35

Finding the Fourth Proportional to 15,193.42, 20,967.97 and 8,480.35

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Solution

The fourth proportional to 15,193.42, 20,967.97 and 8,480.35 is: 11,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.42 : 20,967.97 = 8,480.35 : x
  2. Step 2: Convert to fraction form
    15,193.42/20,967.97 = 8,480.35/x
  3. Step 3: Cross multiply
    15,193.42x = 20,967.97 × 8,480.35
  4. Step 4: Simplify right side
    15,193.42x = 177,815,681.99
  5. Step 5: Solve for x
    x = 177,815,681.99/15,193.42
  6. Step 6: Final answer
    x = 11,703.47

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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.