Home / 8,218.90-11,347.37-7,333.16

Finding the Fourth Proportional to 8,218.90, 11,347.37 and 7,333.16

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Solution

The fourth proportional to 8,218.90, 11,347.37 and 7,333.16 is: 10,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.90 : 11,347.37 = 7,333.16 : x
  2. Step 2: Convert to fraction form
    8,218.90/11,347.37 = 7,333.16/x
  3. Step 3: Cross multiply
    8,218.90x = 11,347.37 × 7,333.16
  4. Step 4: Simplify right side
    8,218.90x = 83,212,079.79
  5. Step 5: Solve for x
    x = 83,212,079.79/8,218.90
  6. Step 6: Final answer
    x = 10,124.48

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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.