Home / 10,222.15-14,100.68-6,387.13

Finding the Fourth Proportional to 10,222.15, 14,100.68 and 6,387.13

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Solution

The fourth proportional to 10,222.15, 14,100.68 and 6,387.13 is: 8,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.15 : 14,100.68 = 6,387.13 : x
  2. Step 2: Convert to fraction form
    10,222.15/14,100.68 = 6,387.13/x
  3. Step 3: Cross multiply
    10,222.15x = 14,100.68 × 6,387.13
  4. Step 4: Simplify right side
    10,222.15x = 90,062,859.51
  5. Step 5: Solve for x
    x = 90,062,859.51/10,222.15
  6. Step 6: Final answer
    x = 8,810.56

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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.