Home / 13,738.74-18,959.50-7,451.12

Finding the Fourth Proportional to 13,738.74, 18,959.50 and 7,451.12

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Solution

The fourth proportional to 13,738.74, 18,959.50 and 7,451.12 is: 10,282.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.74 : 18,959.50 = 7,451.12 : x
  2. Step 2: Convert to fraction form
    13,738.74/18,959.50 = 7,451.12/x
  3. Step 3: Cross multiply
    13,738.74x = 18,959.50 × 7,451.12
  4. Step 4: Simplify right side
    13,738.74x = 141,269,509.64
  5. Step 5: Solve for x
    x = 141,269,509.64/13,738.74
  6. Step 6: Final answer
    x = 10,282.57

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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.