Home / 12,239.29-18,266.36-11,058.31

Finding the Fourth Proportional to 12,239.29, 18,266.36 and 11,058.31

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Solution

The fourth proportional to 12,239.29, 18,266.36 and 11,058.31 is: 16,503.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.29 : 18,266.36 = 11,058.31 : x
  2. Step 2: Convert to fraction form
    12,239.29/18,266.36 = 11,058.31/x
  3. Step 3: Cross multiply
    12,239.29x = 18,266.36 × 11,058.31
  4. Step 4: Simplify right side
    12,239.29x = 201,995,071.45
  5. Step 5: Solve for x
    x = 201,995,071.45/12,239.29
  6. Step 6: Final answer
    x = 16,503.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.