Home / 15,693.26-21,666.83-9,731.25

Finding the Fourth Proportional to 15,693.26, 21,666.83 and 9,731.25

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Solution

The fourth proportional to 15,693.26, 21,666.83 and 9,731.25 is: 13,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.26 : 21,666.83 = 9,731.25 : x
  2. Step 2: Convert to fraction form
    15,693.26/21,666.83 = 9,731.25/x
  3. Step 3: Cross multiply
    15,693.26x = 21,666.83 × 9,731.25
  4. Step 4: Simplify right side
    15,693.26x = 210,845,290.78
  5. Step 5: Solve for x
    x = 210,845,290.78/15,693.26
  6. Step 6: Final answer
    x = 13,435.41

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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.