Home / 13,900.14-19,181.99-7,612.52

Finding the Fourth Proportional to 13,900.14, 19,181.99 and 7,612.52

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Solution

The fourth proportional to 13,900.14, 19,181.99 and 7,612.52 is: 10,505.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.14 : 19,181.99 = 7,612.52 : x
  2. Step 2: Convert to fraction form
    13,900.14/19,181.99 = 7,612.52/x
  3. Step 3: Cross multiply
    13,900.14x = 19,181.99 × 7,612.52
  4. Step 4: Simplify right side
    13,900.14x = 146,023,148.54
  5. Step 5: Solve for x
    x = 146,023,148.54/13,900.14
  6. Step 6: Final answer
    x = 10,505.16

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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.