Home / 12,950.79-19,427.28-5,553.48

Finding the Fourth Proportional to 12,950.79, 19,427.28 and 5,553.48

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Solution

The fourth proportional to 12,950.79, 19,427.28 and 5,553.48 is: 8,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950.79 : 19,427.28 = 5,553.48 : x
  2. Step 2: Convert to fraction form
    12,950.79/19,427.28 = 5,553.48/x
  3. Step 3: Cross multiply
    12,950.79x = 19,427.28 × 5,553.48
  4. Step 4: Simplify right side
    12,950.79x = 107,889,010.93
  5. Step 5: Solve for x
    x = 107,889,010.93/12,950.79
  6. Step 6: Final answer
    x = 8,330.69

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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.