Home / 15,184.76-20,954.16-9,519.75

Finding the Fourth Proportional to 15,184.76, 20,954.16 and 9,519.75

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Solution

The fourth proportional to 15,184.76, 20,954.16 and 9,519.75 is: 13,136.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.76 : 20,954.16 = 9,519.75 : x
  2. Step 2: Convert to fraction form
    15,184.76/20,954.16 = 9,519.75/x
  3. Step 3: Cross multiply
    15,184.76x = 20,954.16 × 9,519.75
  4. Step 4: Simplify right side
    15,184.76x = 199,478,364.66
  5. Step 5: Solve for x
    x = 199,478,364.66/15,184.76
  6. Step 6: Final answer
    x = 13,136.75

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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.