Home / 12,719.97-19,079.93-4,928.76

Finding the Fourth Proportional to 12,719.97, 19,079.93 and 4,928.76

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Solution

The fourth proportional to 12,719.97, 19,079.93 and 4,928.76 is: 7,393.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.97 : 19,079.93 = 4,928.76 : x
  2. Step 2: Convert to fraction form
    12,719.97/19,079.93 = 4,928.76/x
  3. Step 3: Cross multiply
    12,719.97x = 19,079.93 × 4,928.76
  4. Step 4: Simplify right side
    12,719.97x = 94,040,408.11
  5. Step 5: Solve for x
    x = 94,040,408.11/12,719.97
  6. Step 6: Final answer
    x = 7,393.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.