Home / 7,689.13-10,615.83-4,707.97

Finding the Fourth Proportional to 7,689.13, 10,615.83 and 4,707.97

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Solution

The fourth proportional to 7,689.13, 10,615.83 and 4,707.97 is: 6,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.13 : 10,615.83 = 4,707.97 : x
  2. Step 2: Convert to fraction form
    7,689.13/10,615.83 = 4,707.97/x
  3. Step 3: Cross multiply
    7,689.13x = 10,615.83 × 4,707.97
  4. Step 4: Simplify right side
    7,689.13x = 49,979,064.41
  5. Step 5: Solve for x
    x = 49,979,064.41/7,689.13
  6. Step 6: Final answer
    x = 6,499.97

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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.