Home / 13,897.29-19,177.56-7,928.73

Finding the Fourth Proportional to 13,897.29, 19,177.56 and 7,928.73

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Solution

The fourth proportional to 13,897.29, 19,177.56 and 7,928.73 is: 10,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.29 : 19,177.56 = 7,928.73 : x
  2. Step 2: Convert to fraction form
    13,897.29/19,177.56 = 7,928.73/x
  3. Step 3: Cross multiply
    13,897.29x = 19,177.56 × 7,928.73
  4. Step 4: Simplify right side
    13,897.29x = 152,053,695.30
  5. Step 5: Solve for x
    x = 152,053,695.30/13,897.29
  6. Step 6: Final answer
    x = 10,941.25

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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.