Home / 13,898.61-19,178.33-11,073.15

Finding the Fourth Proportional to 13,898.61, 19,178.33 and 11,073.15

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Solution

The fourth proportional to 13,898.61, 19,178.33 and 11,073.15 is: 15,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.61 : 19,178.33 = 11,073.15 : x
  2. Step 2: Convert to fraction form
    13,898.61/19,178.33 = 11,073.15/x
  3. Step 3: Cross multiply
    13,898.61x = 19,178.33 × 11,073.15
  4. Step 4: Simplify right side
    13,898.61x = 212,364,469.47
  5. Step 5: Solve for x
    x = 212,364,469.47/13,898.61
  6. Step 6: Final answer
    x = 15,279.55

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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.