Home / 15,467.28-21,344.80-8,393.64

Finding the Fourth Proportional to 15,467.28, 21,344.80 and 8,393.64

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Solution

The fourth proportional to 15,467.28, 21,344.80 and 8,393.64 is: 11,583.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.28 : 21,344.80 = 8,393.64 : x
  2. Step 2: Convert to fraction form
    15,467.28/21,344.80 = 8,393.64/x
  3. Step 3: Cross multiply
    15,467.28x = 21,344.80 × 8,393.64
  4. Step 4: Simplify right side
    15,467.28x = 179,160,567.07
  5. Step 5: Solve for x
    x = 179,160,567.07/15,467.28
  6. Step 6: Final answer
    x = 11,583.20

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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.