Home / 14,266.20-21,399.30-10,985.70

Finding the Fourth Proportional to 14,266.20, 21,399.30 and 10,985.70

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Solution

The fourth proportional to 14,266.20, 21,399.30 and 10,985.70 is: 16,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.20 : 21,399.30 = 10,985.70 : x
  2. Step 2: Convert to fraction form
    14,266.20/21,399.30 = 10,985.70/x
  3. Step 3: Cross multiply
    14,266.20x = 21,399.30 × 10,985.70
  4. Step 4: Simplify right side
    14,266.20x = 235,086,290.01
  5. Step 5: Solve for x
    x = 235,086,290.01/14,266.20
  6. Step 6: Final answer
    x = 16,478.55

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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.