Home / 7,689.97-10,612.37-4,705.75

Finding the Fourth Proportional to 7,689.97, 10,612.37 and 4,705.75

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Solution

The fourth proportional to 7,689.97, 10,612.37 and 4,705.75 is: 6,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.97 : 10,612.37 = 4,705.75 : x
  2. Step 2: Convert to fraction form
    7,689.97/10,612.37 = 4,705.75/x
  3. Step 3: Cross multiply
    7,689.97x = 10,612.37 × 4,705.75
  4. Step 4: Simplify right side
    7,689.97x = 49,939,160.13
  5. Step 5: Solve for x
    x = 49,939,160.13/7,689.97
  6. Step 6: Final answer
    x = 6,494.06

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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.