Home / 15,991.27-22,068.11-9,278.53

Finding the Fourth Proportional to 15,991.27, 22,068.11 and 9,278.53

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Solution

The fourth proportional to 15,991.27, 22,068.11 and 9,278.53 is: 12,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.27 : 22,068.11 = 9,278.53 : x
  2. Step 2: Convert to fraction form
    15,991.27/22,068.11 = 9,278.53/x
  3. Step 3: Cross multiply
    15,991.27x = 22,068.11 × 9,278.53
  4. Step 4: Simplify right side
    15,991.27x = 204,759,620.68
  5. Step 5: Solve for x
    x = 204,759,620.68/15,991.27
  6. Step 6: Final answer
    x = 12,804.46

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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.