Home / 14,396.40-19,866.36-9,679.92

Finding the Fourth Proportional to 14,396.40, 19,866.36 and 9,679.92

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Solution

The fourth proportional to 14,396.40, 19,866.36 and 9,679.92 is: 13,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.40 : 19,866.36 = 9,679.92 : x
  2. Step 2: Convert to fraction form
    14,396.40/19,866.36 = 9,679.92/x
  3. Step 3: Cross multiply
    14,396.40x = 19,866.36 × 9,679.92
  4. Step 4: Simplify right side
    14,396.40x = 192,304,775.49
  5. Step 5: Solve for x
    x = 192,304,775.49/14,396.40
  6. Step 6: Final answer
    x = 13,357.84

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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.