Home / 12,717.72-19,079.46-4,928.76

Finding the Fourth Proportional to 12,717.72, 19,079.46 and 4,928.76

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Solution

The fourth proportional to 12,717.72, 19,079.46 and 4,928.76 is: 7,394.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.72 : 19,079.46 = 4,928.76 : x
  2. Step 2: Convert to fraction form
    12,717.72/19,079.46 = 4,928.76/x
  3. Step 3: Cross multiply
    12,717.72x = 19,079.46 × 4,928.76
  4. Step 4: Simplify right side
    12,717.72x = 94,038,079.27
  5. Step 5: Solve for x
    x = 94,038,079.27/12,717.72
  6. Step 6: Final answer
    x = 7,394.26

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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.