Home / 12,645.54-18,962.10-7,382.52

Finding the Fourth Proportional to 12,645.54, 18,962.10 and 7,382.52

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Solution

The fourth proportional to 12,645.54, 18,962.10 and 7,382.52 is: 11,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.54 : 18,962.10 = 7,382.52 : x
  2. Step 2: Convert to fraction form
    12,645.54/18,962.10 = 7,382.52/x
  3. Step 3: Cross multiply
    12,645.54x = 18,962.10 × 7,382.52
  4. Step 4: Simplify right side
    12,645.54x = 139,988,082.49
  5. Step 5: Solve for x
    x = 139,988,082.49/12,645.54
  6. Step 6: Final answer
    x = 11,070.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.