Home / 9,307.92-12,839.54-6,121.79

Finding the Fourth Proportional to 9,307.92, 12,839.54 and 6,121.79

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Solution

The fourth proportional to 9,307.92, 12,839.54 and 6,121.79 is: 8,444.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,307.92 : 12,839.54 = 6,121.79 : x
  2. Step 2: Convert to fraction form
    9,307.92/12,839.54 = 6,121.79/x
  3. Step 3: Cross multiply
    9,307.92x = 12,839.54 × 6,121.79
  4. Step 4: Simplify right side
    9,307.92x = 78,600,872.77
  5. Step 5: Solve for x
    x = 78,600,872.77/9,307.92
  6. Step 6: Final answer
    x = 8,444.52

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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.