Home / 14,239.02-21,363.42-7,215.54

Finding the Fourth Proportional to 14,239.02, 21,363.42 and 7,215.54

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Solution

The fourth proportional to 14,239.02, 21,363.42 and 7,215.54 is: 10,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.02 : 21,363.42 = 7,215.54 : x
  2. Step 2: Convert to fraction form
    14,239.02/21,363.42 = 7,215.54/x
  3. Step 3: Cross multiply
    14,239.02x = 21,363.42 × 7,215.54
  4. Step 4: Simplify right side
    14,239.02x = 154,148,611.55
  5. Step 5: Solve for x
    x = 154,148,611.55/14,239.02
  6. Step 6: Final answer
    x = 10,825.79

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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.