Home / 12,788.49-19,179.70-4,888.11

Finding the Fourth Proportional to 12,788.49, 19,179.70 and 4,888.11

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Solution

The fourth proportional to 12,788.49, 19,179.70 and 4,888.11 is: 7,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.49 : 19,179.70 = 4,888.11 : x
  2. Step 2: Convert to fraction form
    12,788.49/19,179.70 = 4,888.11/x
  3. Step 3: Cross multiply
    12,788.49x = 19,179.70 × 4,888.11
  4. Step 4: Simplify right side
    12,788.49x = 93,752,405.33
  5. Step 5: Solve for x
    x = 93,752,405.33/12,788.49
  6. Step 6: Final answer
    x = 7,331.00

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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.