Home / 8,319.77-11,479.97-4,782.29

Finding the Fourth Proportional to 8,319.77, 11,479.97 and 4,782.29

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Solution

The fourth proportional to 8,319.77, 11,479.97 and 4,782.29 is: 6,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.77 : 11,479.97 = 4,782.29 : x
  2. Step 2: Convert to fraction form
    8,319.77/11,479.97 = 4,782.29/x
  3. Step 3: Cross multiply
    8,319.77x = 11,479.97 × 4,782.29
  4. Step 4: Simplify right side
    8,319.77x = 54,900,464.42
  5. Step 5: Solve for x
    x = 54,900,464.42/8,319.77
  6. Step 6: Final answer
    x = 6,598.80

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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.