Home / 15,316.09-21,157.71-11,824.18

Finding the Fourth Proportional to 15,316.09, 21,157.71 and 11,824.18

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Solution

The fourth proportional to 15,316.09, 21,157.71 and 11,824.18 is: 16,333.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.09 : 21,157.71 = 11,824.18 : x
  2. Step 2: Convert to fraction form
    15,316.09/21,157.71 = 11,824.18/x
  3. Step 3: Cross multiply
    15,316.09x = 21,157.71 × 11,824.18
  4. Step 4: Simplify right side
    15,316.09x = 250,172,474.19
  5. Step 5: Solve for x
    x = 250,172,474.19/15,316.09
  6. Step 6: Final answer
    x = 16,333.97

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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.