Home / 14,222.35-21,327.31-7,557.40

Finding the Fourth Proportional to 14,222.35, 21,327.31 and 7,557.40

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Solution

The fourth proportional to 14,222.35, 21,327.31 and 7,557.40 is: 11,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.35 : 21,327.31 = 7,557.40 : x
  2. Step 2: Convert to fraction form
    14,222.35/21,327.31 = 7,557.40/x
  3. Step 3: Cross multiply
    14,222.35x = 21,327.31 × 7,557.40
  4. Step 4: Simplify right side
    14,222.35x = 161,179,012.59
  5. Step 5: Solve for x
    x = 161,179,012.59/14,222.35
  6. Step 6: Final answer
    x = 11,332.80

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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.