Home / 13,865.88-19,134-7,898.16

Finding the Fourth Proportional to 13,865.88, 19,134 and 7,898.16

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Solution

The fourth proportional to 13,865.88, 19,134 and 7,898.16 is: 10,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.88 : 19,134 = 7,898.16 : x
  2. Step 2: Convert to fraction form
    13,865.88/19,134 = 7,898.16/x
  3. Step 3: Cross multiply
    13,865.88x = 19,134 × 7,898.16
  4. Step 4: Simplify right side
    13,865.88x = 151,123,393.44
  5. Step 5: Solve for x
    x = 151,123,393.44/13,865.88
  6. Step 6: Final answer
    x = 10,898.94

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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.