Home / 13,235.09-19,838.79-9,719.87

Finding the Fourth Proportional to 13,235.09, 19,838.79 and 9,719.87

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Solution

The fourth proportional to 13,235.09, 19,838.79 and 9,719.87 is: 14,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.09 : 19,838.79 = 9,719.87 : x
  2. Step 2: Convert to fraction form
    13,235.09/19,838.79 = 9,719.87/x
  3. Step 3: Cross multiply
    13,235.09x = 19,838.79 × 9,719.87
  4. Step 4: Simplify right side
    13,235.09x = 192,830,360.56
  5. Step 5: Solve for x
    x = 192,830,360.56/13,235.09
  6. Step 6: Final answer
    x = 14,569.64

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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.