Home / 8,317.49-11,479.28-4,780.62

Finding the Fourth Proportional to 8,317.49, 11,479.28 and 4,780.62

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Solution

The fourth proportional to 8,317.49, 11,479.28 and 4,780.62 is: 6,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.49 : 11,479.28 = 4,780.62 : x
  2. Step 2: Convert to fraction form
    8,317.49/11,479.28 = 4,780.62/x
  3. Step 3: Cross multiply
    8,317.49x = 11,479.28 × 4,780.62
  4. Step 4: Simplify right side
    8,317.49x = 54,878,051.65
  5. Step 5: Solve for x
    x = 54,878,051.65/8,317.49
  6. Step 6: Final answer
    x = 6,597.91

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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.