Home / 12,538.58-17,302.50-6,872.20

Finding the Fourth Proportional to 12,538.58, 17,302.50 and 6,872.20

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Solution

The fourth proportional to 12,538.58, 17,302.50 and 6,872.20 is: 9,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.58 : 17,302.50 = 6,872.20 : x
  2. Step 2: Convert to fraction form
    12,538.58/17,302.50 = 6,872.20/x
  3. Step 3: Cross multiply
    12,538.58x = 17,302.50 × 6,872.20
  4. Step 4: Simplify right side
    12,538.58x = 118,906,197.24
  5. Step 5: Solve for x
    x = 118,906,197.24/12,538.58
  6. Step 6: Final answer
    x = 9,483.23

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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.