Home / 14,017.78-19,344.18-7,729.75

Finding the Fourth Proportional to 14,017.78, 19,344.18 and 7,729.75

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Solution

The fourth proportional to 14,017.78, 19,344.18 and 7,729.75 is: 10,666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.78 : 19,344.18 = 7,729.75 : x
  2. Step 2: Convert to fraction form
    14,017.78/19,344.18 = 7,729.75/x
  3. Step 3: Cross multiply
    14,017.78x = 19,344.18 × 7,729.75
  4. Step 4: Simplify right side
    14,017.78x = 149,525,675.36
  5. Step 5: Solve for x
    x = 149,525,675.36/14,017.78
  6. Step 6: Final answer
    x = 10,666.86

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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.