Home / 13,153.32-19,729.99-5,259.39

Finding the Fourth Proportional to 13,153.32, 19,729.99 and 5,259.39

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Solution

The fourth proportional to 13,153.32, 19,729.99 and 5,259.39 is: 7,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.32 : 19,729.99 = 5,259.39 : x
  2. Step 2: Convert to fraction form
    13,153.32/19,729.99 = 5,259.39/x
  3. Step 3: Cross multiply
    13,153.32x = 19,729.99 × 5,259.39
  4. Step 4: Simplify right side
    13,153.32x = 103,767,757.53
  5. Step 5: Solve for x
    x = 103,767,757.53/13,153.32
  6. Step 6: Final answer
    x = 7,889.09

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Similar ratio
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1.5x scale

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.