Home / 7,707.12-10,635.80-4,170.32

Finding the Fourth Proportional to 7,707.12, 10,635.80 and 4,170.32

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Solution

The fourth proportional to 7,707.12, 10,635.80 and 4,170.32 is: 5,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.12 : 10,635.80 = 4,170.32 : x
  2. Step 2: Convert to fraction form
    7,707.12/10,635.80 = 4,170.32/x
  3. Step 3: Cross multiply
    7,707.12x = 10,635.80 × 4,170.32
  4. Step 4: Simplify right side
    7,707.12x = 44,354,689.46
  5. Step 5: Solve for x
    x = 44,354,689.46/7,707.12
  6. Step 6: Final answer
    x = 5,755.03

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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.