Home / 13,888.81-19,166.08-7,922.41

Finding the Fourth Proportional to 13,888.81, 19,166.08 and 7,922.41

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Solution

The fourth proportional to 13,888.81, 19,166.08 and 7,922.41 is: 10,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.81 : 19,166.08 = 7,922.41 : x
  2. Step 2: Convert to fraction form
    13,888.81/19,166.08 = 7,922.41/x
  3. Step 3: Cross multiply
    13,888.81x = 19,166.08 × 7,922.41
  4. Step 4: Simplify right side
    13,888.81x = 151,841,543.85
  5. Step 5: Solve for x
    x = 151,841,543.85/13,888.81
  6. Step 6: Final answer
    x = 10,932.65

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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.