Home / 15,448.36-21,311.22-9,156.28

Finding the Fourth Proportional to 15,448.36, 21,311.22 and 9,156.28

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Solution

The fourth proportional to 15,448.36, 21,311.22 and 9,156.28 is: 12,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.36 : 21,311.22 = 9,156.28 : x
  2. Step 2: Convert to fraction form
    15,448.36/21,311.22 = 9,156.28/x
  3. Step 3: Cross multiply
    15,448.36x = 21,311.22 × 9,156.28
  4. Step 4: Simplify right side
    15,448.36x = 195,131,497.46
  5. Step 5: Solve for x
    x = 195,131,497.46/15,448.36
  6. Step 6: Final answer
    x = 12,631.21

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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.