Home / 14,220.36-21,288.42-10,539.11

Finding the Fourth Proportional to 14,220.36, 21,288.42 and 10,539.11

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Solution

The fourth proportional to 14,220.36, 21,288.42 and 10,539.11 is: 15,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.36 : 21,288.42 = 10,539.11 : x
  2. Step 2: Convert to fraction form
    14,220.36/21,288.42 = 10,539.11/x
  3. Step 3: Cross multiply
    14,220.36x = 21,288.42 × 10,539.11
  4. Step 4: Simplify right side
    14,220.36x = 224,361,053.33
  5. Step 5: Solve for x
    x = 224,361,053.33/14,220.36
  6. Step 6: Final answer
    x = 15,777.45

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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.