Home / 15,926.48-21,972.72-9,636.56

Finding the Fourth Proportional to 15,926.48, 21,972.72 and 9,636.56

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Solution

The fourth proportional to 15,926.48, 21,972.72 and 9,636.56 is: 13,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926.48 : 21,972.72 = 9,636.56 : x
  2. Step 2: Convert to fraction form
    15,926.48/21,972.72 = 9,636.56/x
  3. Step 3: Cross multiply
    15,926.48x = 21,972.72 × 9,636.56
  4. Step 4: Simplify right side
    15,926.48x = 211,741,434.64
  5. Step 5: Solve for x
    x = 211,741,434.64/15,926.48
  6. Step 6: Final answer
    x = 13,294.93

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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.