Home / 8,505.75-11,737.91-4,728.80

Finding the Fourth Proportional to 8,505.75, 11,737.91 and 4,728.80

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Solution

The fourth proportional to 8,505.75, 11,737.91 and 4,728.80 is: 6,525.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.75 : 11,737.91 = 4,728.80 : x
  2. Step 2: Convert to fraction form
    8,505.75/11,737.91 = 4,728.80/x
  3. Step 3: Cross multiply
    8,505.75x = 11,737.91 × 4,728.80
  4. Step 4: Simplify right side
    8,505.75x = 55,506,146.47
  5. Step 5: Solve for x
    x = 55,506,146.47/8,505.75
  6. Step 6: Final answer
    x = 6,525.72

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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.