Home / 15,497.44-21,386.99-9,122.88

Finding the Fourth Proportional to 15,497.44, 21,386.99 and 9,122.88

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Solution

The fourth proportional to 15,497.44, 21,386.99 and 9,122.88 is: 12,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.44 : 21,386.99 = 9,122.88 : x
  2. Step 2: Convert to fraction form
    15,497.44/21,386.99 = 9,122.88/x
  3. Step 3: Cross multiply
    15,497.44x = 21,386.99 × 9,122.88
  4. Step 4: Simplify right side
    15,497.44x = 195,110,943.33
  5. Step 5: Solve for x
    x = 195,110,943.33/15,497.44
  6. Step 6: Final answer
    x = 12,589.88

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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.