Home / 12,122.73-16,725.47-7,341.15

Finding the Fourth Proportional to 12,122.73, 16,725.47 and 7,341.15

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Solution

The fourth proportional to 12,122.73, 16,725.47 and 7,341.15 is: 10,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.73 : 16,725.47 = 7,341.15 : x
  2. Step 2: Convert to fraction form
    12,122.73/16,725.47 = 7,341.15/x
  3. Step 3: Cross multiply
    12,122.73x = 16,725.47 × 7,341.15
  4. Step 4: Simplify right side
    12,122.73x = 122,784,082.11
  5. Step 5: Solve for x
    x = 122,784,082.11/12,122.73
  6. Step 6: Final answer
    x = 10,128.42

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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.