Home / 15,467.36-21,337.44-9,175.28

Finding the Fourth Proportional to 15,467.36, 21,337.44 and 9,175.28

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Solution

The fourth proportional to 15,467.36, 21,337.44 and 9,175.28 is: 12,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.36 : 21,337.44 = 9,175.28 : x
  2. Step 2: Convert to fraction form
    15,467.36/21,337.44 = 9,175.28/x
  3. Step 3: Cross multiply
    15,467.36x = 21,337.44 × 9,175.28
  4. Step 4: Simplify right side
    15,467.36x = 195,776,986.48
  5. Step 5: Solve for x
    x = 195,776,986.48/15,467.36
  6. Step 6: Final answer
    x = 12,657.43

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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.