Home / 10,991.94-15,168.51-6,212.07

Finding the Fourth Proportional to 10,991.94, 15,168.51 and 6,212.07

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Solution

The fourth proportional to 10,991.94, 15,168.51 and 6,212.07 is: 8,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.94 : 15,168.51 = 6,212.07 : x
  2. Step 2: Convert to fraction form
    10,991.94/15,168.51 = 6,212.07/x
  3. Step 3: Cross multiply
    10,991.94x = 15,168.51 × 6,212.07
  4. Step 4: Simplify right side
    10,991.94x = 94,227,845.92
  5. Step 5: Solve for x
    x = 94,227,845.92/10,991.94
  6. Step 6: Final answer
    x = 8,572.45

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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.