Home / 8,498.79-11,728.08-4,721.72

Finding the Fourth Proportional to 8,498.79, 11,728.08 and 4,721.72

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Solution

The fourth proportional to 8,498.79, 11,728.08 and 4,721.72 is: 6,515.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.79 : 11,728.08 = 4,721.72 : x
  2. Step 2: Convert to fraction form
    8,498.79/11,728.08 = 4,721.72/x
  3. Step 3: Cross multiply
    8,498.79x = 11,728.08 × 4,721.72
  4. Step 4: Simplify right side
    8,498.79x = 55,376,651.26
  5. Step 5: Solve for x
    x = 55,376,651.26/8,498.79
  6. Step 6: Final answer
    x = 6,515.83

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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.