Home / 14,177.80-21,266.70-7,179.40

Finding the Fourth Proportional to 14,177.80, 21,266.70 and 7,179.40

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Solution

The fourth proportional to 14,177.80, 21,266.70 and 7,179.40 is: 10,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.80 : 21,266.70 = 7,179.40 : x
  2. Step 2: Convert to fraction form
    14,177.80/21,266.70 = 7,179.40/x
  3. Step 3: Cross multiply
    14,177.80x = 21,266.70 × 7,179.40
  4. Step 4: Simplify right side
    14,177.80x = 152,682,145.98
  5. Step 5: Solve for x
    x = 152,682,145.98/14,177.80
  6. Step 6: Final answer
    x = 10,769.10

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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.