Home / 14,266.80-21,400.20-7,268.40

Finding the Fourth Proportional to 14,266.80, 21,400.20 and 7,268.40

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Solution

The fourth proportional to 14,266.80, 21,400.20 and 7,268.40 is: 10,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.80 : 21,400.20 = 7,268.40 : x
  2. Step 2: Convert to fraction form
    14,266.80/21,400.20 = 7,268.40/x
  3. Step 3: Cross multiply
    14,266.80x = 21,400.20 × 7,268.40
  4. Step 4: Simplify right side
    14,266.80x = 155,545,213.68
  5. Step 5: Solve for x
    x = 155,545,213.68/14,266.80
  6. Step 6: Final answer
    x = 10,902.60

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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.