Home / 15,889.28-21,926.31-9,174.50

Finding the Fourth Proportional to 15,889.28, 21,926.31 and 9,174.50

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Solution

The fourth proportional to 15,889.28, 21,926.31 and 9,174.50 is: 12,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.28 : 21,926.31 = 9,174.50 : x
  2. Step 2: Convert to fraction form
    15,889.28/21,926.31 = 9,174.50/x
  3. Step 3: Cross multiply
    15,889.28x = 21,926.31 × 9,174.50
  4. Step 4: Simplify right side
    15,889.28x = 201,162,821.46
  5. Step 5: Solve for x
    x = 201,162,821.46/15,889.28
  6. Step 6: Final answer
    x = 12,660.29

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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.