Home / 13,164.98-19,729.95-6,491.29

Finding the Fourth Proportional to 13,164.98, 19,729.95 and 6,491.29

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Solution

The fourth proportional to 13,164.98, 19,729.95 and 6,491.29 is: 9,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.98 : 19,729.95 = 6,491.29 : x
  2. Step 2: Convert to fraction form
    13,164.98/19,729.95 = 6,491.29/x
  3. Step 3: Cross multiply
    13,164.98x = 19,729.95 × 6,491.29
  4. Step 4: Simplify right side
    13,164.98x = 128,072,827.14
  5. Step 5: Solve for x
    x = 128,072,827.14/13,164.98
  6. Step 6: Final answer
    x = 9,728.30

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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.