Home / 8,689.36-11,991.26-4,710.38

Finding the Fourth Proportional to 8,689.36, 11,991.26 and 4,710.38

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Solution

The fourth proportional to 8,689.36, 11,991.26 and 4,710.38 is: 6,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.36 : 11,991.26 = 4,710.38 : x
  2. Step 2: Convert to fraction form
    8,689.36/11,991.26 = 4,710.38/x
  3. Step 3: Cross multiply
    8,689.36x = 11,991.26 × 4,710.38
  4. Step 4: Simplify right side
    8,689.36x = 56,483,391.28
  5. Step 5: Solve for x
    x = 56,483,391.28/8,689.36
  6. Step 6: Final answer
    x = 6,500.29

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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.