Home / 7,664.67-10,569.42-7,218.18

Finding the Fourth Proportional to 7,664.67, 10,569.42 and 7,218.18

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Solution

The fourth proportional to 7,664.67, 10,569.42 and 7,218.18 is: 9,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.67 : 10,569.42 = 7,218.18 : x
  2. Step 2: Convert to fraction form
    7,664.67/10,569.42 = 7,218.18/x
  3. Step 3: Cross multiply
    7,664.67x = 10,569.42 × 7,218.18
  4. Step 4: Simplify right side
    7,664.67x = 76,291,976.06
  5. Step 5: Solve for x
    x = 76,291,976.06/7,664.67
  6. Step 6: Final answer
    x = 9,953.72

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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.