Home / 15,347.70-21,167.19-9,054

Finding the Fourth Proportional to 15,347.70, 21,167.19 and 9,054

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Solution

The fourth proportional to 15,347.70, 21,167.19 and 9,054 is: 12,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.70 : 21,167.19 = 9,054 : x
  2. Step 2: Convert to fraction form
    15,347.70/21,167.19 = 9,054/x
  3. Step 3: Cross multiply
    15,347.70x = 21,167.19 × 9,054
  4. Step 4: Simplify right side
    15,347.70x = 191,647,738.26
  5. Step 5: Solve for x
    x = 191,647,738.26/15,347.70
  6. Step 6: Final answer
    x = 12,487.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.