Home / 13,862.43-19,133.48-7,895.57

Finding the Fourth Proportional to 13,862.43, 19,133.48 and 7,895.57

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Solution

The fourth proportional to 13,862.43, 19,133.48 and 7,895.57 is: 10,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.43 : 19,133.48 = 7,895.57 : x
  2. Step 2: Convert to fraction form
    13,862.43/19,133.48 = 7,895.57/x
  3. Step 3: Cross multiply
    13,862.43x = 19,133.48 × 7,895.57
  4. Step 4: Simplify right side
    13,862.43x = 151,069,654.76
  5. Step 5: Solve for x
    x = 151,069,654.76/13,862.43
  6. Step 6: Final answer
    x = 10,897.78

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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.