Home / 13,237.09-19,841.79-9,721.87

Finding the Fourth Proportional to 13,237.09, 19,841.79 and 9,721.87

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Solution

The fourth proportional to 13,237.09, 19,841.79 and 9,721.87 is: 14,572.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.09 : 19,841.79 = 9,721.87 : x
  2. Step 2: Convert to fraction form
    13,237.09/19,841.79 = 9,721.87/x
  3. Step 3: Cross multiply
    13,237.09x = 19,841.79 × 9,721.87
  4. Step 4: Simplify right side
    13,237.09x = 192,899,302.95
  5. Step 5: Solve for x
    x = 192,899,302.95/13,237.09
  6. Step 6: Final answer
    x = 14,572.64

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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.