Home / 14,220.28-21,325.02-6,820.12

Finding the Fourth Proportional to 14,220.28, 21,325.02 and 6,820.12

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Solution

The fourth proportional to 14,220.28, 21,325.02 and 6,820.12 is: 10,227.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.28 : 21,325.02 = 6,820.12 : x
  2. Step 2: Convert to fraction form
    14,220.28/21,325.02 = 6,820.12/x
  3. Step 3: Cross multiply
    14,220.28x = 21,325.02 × 6,820.12
  4. Step 4: Simplify right side
    14,220.28x = 145,439,195.40
  5. Step 5: Solve for x
    x = 145,439,195.40/14,220.28
  6. Step 6: Final answer
    x = 10,227.59

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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.