Home / 13,851.62-19,087.77-9,865.70

Finding the Fourth Proportional to 13,851.62, 19,087.77 and 9,865.70

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Solution

The fourth proportional to 13,851.62, 19,087.77 and 9,865.70 is: 13,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.62 : 19,087.77 = 9,865.70 : x
  2. Step 2: Convert to fraction form
    13,851.62/19,087.77 = 9,865.70/x
  3. Step 3: Cross multiply
    13,851.62x = 19,087.77 × 9,865.70
  4. Step 4: Simplify right side
    13,851.62x = 188,314,212.49
  5. Step 5: Solve for x
    x = 188,314,212.49/13,851.62
  6. Step 6: Final answer
    x = 13,595.10

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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.