Home / 8,501.44-11,728.62-4,915.74

Finding the Fourth Proportional to 8,501.44, 11,728.62 and 4,915.74

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Solution

The fourth proportional to 8,501.44, 11,728.62 and 4,915.74 is: 6,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.44 : 11,728.62 = 4,915.74 : x
  2. Step 2: Convert to fraction form
    8,501.44/11,728.62 = 4,915.74/x
  3. Step 3: Cross multiply
    8,501.44x = 11,728.62 × 4,915.74
  4. Step 4: Simplify right side
    8,501.44x = 57,654,838.31
  5. Step 5: Solve for x
    x = 57,654,838.31/8,501.44
  6. Step 6: Final answer
    x = 6,781.77

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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.