Home / 13,018.96-19,490.04-8,072.68

Finding the Fourth Proportional to 13,018.96, 19,490.04 and 8,072.68

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Solution

The fourth proportional to 13,018.96, 19,490.04 and 8,072.68 is: 12,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.96 : 19,490.04 = 8,072.68 : x
  2. Step 2: Convert to fraction form
    13,018.96/19,490.04 = 8,072.68/x
  3. Step 3: Cross multiply
    13,018.96x = 19,490.04 × 8,072.68
  4. Step 4: Simplify right side
    13,018.96x = 157,336,856.11
  5. Step 5: Solve for x
    x = 157,336,856.11/13,018.96
  6. Step 6: Final answer
    x = 12,085.21

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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.