Home / 13,114.32-19,671.36-5,321.28

Finding the Fourth Proportional to 13,114.32, 19,671.36 and 5,321.28

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Solution

The fourth proportional to 13,114.32, 19,671.36 and 5,321.28 is: 7,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.32 : 19,671.36 = 5,321.28 : x
  2. Step 2: Convert to fraction form
    13,114.32/19,671.36 = 5,321.28/x
  3. Step 3: Cross multiply
    13,114.32x = 19,671.36 × 5,321.28
  4. Step 4: Simplify right side
    13,114.32x = 104,676,814.54
  5. Step 5: Solve for x
    x = 104,676,814.54/13,114.32
  6. Step 6: Final answer
    x = 7,981.87

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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.