Home / 14,235.23-21,365.90-7,220.12

Finding the Fourth Proportional to 14,235.23, 21,365.90 and 7,220.12

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Solution

The fourth proportional to 14,235.23, 21,365.90 and 7,220.12 is: 10,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.23 : 21,365.90 = 7,220.12 : x
  2. Step 2: Convert to fraction form
    14,235.23/21,365.90 = 7,220.12/x
  3. Step 3: Cross multiply
    14,235.23x = 21,365.90 × 7,220.12
  4. Step 4: Simplify right side
    14,235.23x = 154,264,361.91
  5. Step 5: Solve for x
    x = 154,264,361.91/14,235.23
  6. Step 6: Final answer
    x = 10,836.80

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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.