Home / 7,146.83-10,707.29-6,991.31

Finding the Fourth Proportional to 7,146.83, 10,707.29 and 6,991.31

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Solution

The fourth proportional to 7,146.83, 10,707.29 and 6,991.31 is: 10,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.83 : 10,707.29 = 6,991.31 : x
  2. Step 2: Convert to fraction form
    7,146.83/10,707.29 = 6,991.31/x
  3. Step 3: Cross multiply
    7,146.83x = 10,707.29 × 6,991.31
  4. Step 4: Simplify right side
    7,146.83x = 74,857,948.69
  5. Step 5: Solve for x
    x = 74,857,948.69/7,146.83
  6. Step 6: Final answer
    x = 10,474.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.