Home / 12,850.12-19,182.57-11,888.20

Finding the Fourth Proportional to 12,850.12, 19,182.57 and 11,888.20

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Solution

The fourth proportional to 12,850.12, 19,182.57 and 11,888.20 is: 17,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.12 : 19,182.57 = 11,888.20 : x
  2. Step 2: Convert to fraction form
    12,850.12/19,182.57 = 11,888.20/x
  3. Step 3: Cross multiply
    12,850.12x = 19,182.57 × 11,888.20
  4. Step 4: Simplify right side
    12,850.12x = 228,046,228.67
  5. Step 5: Solve for x
    x = 228,046,228.67/12,850.12
  6. Step 6: Final answer
    x = 17,746.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.