Home / 13,018.59-17,967.44-7,981.92

Finding the Fourth Proportional to 13,018.59, 17,967.44 and 7,981.92

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Solution

The fourth proportional to 13,018.59, 17,967.44 and 7,981.92 is: 11,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.59 : 17,967.44 = 7,981.92 : x
  2. Step 2: Convert to fraction form
    13,018.59/17,967.44 = 7,981.92/x
  3. Step 3: Cross multiply
    13,018.59x = 17,967.44 × 7,981.92
  4. Step 4: Simplify right side
    13,018.59x = 143,414,688.64
  5. Step 5: Solve for x
    x = 143,414,688.64/13,018.59
  6. Step 6: Final answer
    x = 11,016.15

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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.