Home / 15,296.53-21,118.66-10,199.21

Finding the Fourth Proportional to 15,296.53, 21,118.66 and 10,199.21

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Solution

The fourth proportional to 15,296.53, 21,118.66 and 10,199.21 is: 14,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,296.53 : 21,118.66 = 10,199.21 : x
  2. Step 2: Convert to fraction form
    15,296.53/21,118.66 = 10,199.21/x
  3. Step 3: Cross multiply
    15,296.53x = 21,118.66 × 10,199.21
  4. Step 4: Simplify right side
    15,296.53x = 215,393,648.26
  5. Step 5: Solve for x
    x = 215,393,648.26/15,296.53
  6. Step 6: Final answer
    x = 14,081.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.