Home / 13,899.73-19,181.19-7,612.15

Finding the Fourth Proportional to 13,899.73, 19,181.19 and 7,612.15

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Solution

The fourth proportional to 13,899.73, 19,181.19 and 7,612.15 is: 10,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.73 : 19,181.19 = 7,612.15 : x
  2. Step 2: Convert to fraction form
    13,899.73/19,181.19 = 7,612.15/x
  3. Step 3: Cross multiply
    13,899.73x = 19,181.19 × 7,612.15
  4. Step 4: Simplify right side
    13,899.73x = 146,010,095.46
  5. Step 5: Solve for x
    x = 146,010,095.46/13,899.73
  6. Step 6: Final answer
    x = 10,504.53

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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.