Home / 8,389.60-11,577.72-4,612.79

Finding the Fourth Proportional to 8,389.60, 11,577.72 and 4,612.79

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Solution

The fourth proportional to 8,389.60, 11,577.72 and 4,612.79 is: 6,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.60 : 11,577.72 = 4,612.79 : x
  2. Step 2: Convert to fraction form
    8,389.60/11,577.72 = 4,612.79/x
  3. Step 3: Cross multiply
    8,389.60x = 11,577.72 × 4,612.79
  4. Step 4: Simplify right side
    8,389.60x = 53,405,573.63
  5. Step 5: Solve for x
    x = 53,405,573.63/8,389.60
  6. Step 6: Final answer
    x = 6,365.69

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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.