Home / 8,389.78-11,577.65-4,612.95

Finding the Fourth Proportional to 8,389.78, 11,577.65 and 4,612.95

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Solution

The fourth proportional to 8,389.78, 11,577.65 and 4,612.95 is: 6,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.78 : 11,577.65 = 4,612.95 : x
  2. Step 2: Convert to fraction form
    8,389.78/11,577.65 = 4,612.95/x
  3. Step 3: Cross multiply
    8,389.78x = 11,577.65 × 4,612.95
  4. Step 4: Simplify right side
    8,389.78x = 53,407,120.57
  5. Step 5: Solve for x
    x = 53,407,120.57/8,389.78
  6. Step 6: Final answer
    x = 6,365.74

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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.