Home / 8,962.89-13,376.55-8,729.61

Finding the Fourth Proportional to 8,962.89, 13,376.55 and 8,729.61

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Solution

The fourth proportional to 8,962.89, 13,376.55 and 8,729.61 is: 13,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.89 : 13,376.55 = 8,729.61 : x
  2. Step 2: Convert to fraction form
    8,962.89/13,376.55 = 8,729.61/x
  3. Step 3: Cross multiply
    8,962.89x = 13,376.55 × 8,729.61
  4. Step 4: Simplify right side
    8,962.89x = 116,772,064.65
  5. Step 5: Solve for x
    x = 116,772,064.65/8,962.89
  6. Step 6: Final answer
    x = 13,028.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.