Home / 13,888.87-19,166.17-7,922.47

Finding the Fourth Proportional to 13,888.87, 19,166.17 and 7,922.47

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Solution

The fourth proportional to 13,888.87, 19,166.17 and 7,922.47 is: 10,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.87 : 19,166.17 = 7,922.47 : x
  2. Step 2: Convert to fraction form
    13,888.87/19,166.17 = 7,922.47/x
  3. Step 3: Cross multiply
    13,888.87x = 19,166.17 × 7,922.47
  4. Step 4: Simplify right side
    13,888.87x = 151,843,406.84
  5. Step 5: Solve for x
    x = 151,843,406.84/13,888.87
  6. Step 6: Final answer
    x = 10,932.74

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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.