Home / 13,114.71-19,661.13-6,531.84

Finding the Fourth Proportional to 13,114.71, 19,661.13 and 6,531.84

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Solution

The fourth proportional to 13,114.71, 19,661.13 and 6,531.84 is: 9,792.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.71 : 19,661.13 = 6,531.84 : x
  2. Step 2: Convert to fraction form
    13,114.71/19,661.13 = 6,531.84/x
  3. Step 3: Cross multiply
    13,114.71x = 19,661.13 × 6,531.84
  4. Step 4: Simplify right side
    13,114.71x = 128,423,355.38
  5. Step 5: Solve for x
    x = 128,423,355.38/13,114.71
  6. Step 6: Final answer
    x = 9,792.31

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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.