Home / 13,808.32-20,648.88-10,257.14

Finding the Fourth Proportional to 13,808.32, 20,648.88 and 10,257.14

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Solution

The fourth proportional to 13,808.32, 20,648.88 and 10,257.14 is: 15,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.32 : 20,648.88 = 10,257.14 : x
  2. Step 2: Convert to fraction form
    13,808.32/20,648.88 = 10,257.14/x
  3. Step 3: Cross multiply
    13,808.32x = 20,648.88 × 10,257.14
  4. Step 4: Simplify right side
    13,808.32x = 211,798,453.00
  5. Step 5: Solve for x
    x = 211,798,453.00/13,808.32
  6. Step 6: Final answer
    x = 15,338.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.