Home / 11,515.32-17,277.84-5,671.98

Finding the Fourth Proportional to 11,515.32, 17,277.84 and 5,671.98

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Solution

The fourth proportional to 11,515.32, 17,277.84 and 5,671.98 is: 8,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.32 : 17,277.84 = 5,671.98 : x
  2. Step 2: Convert to fraction form
    11,515.32/17,277.84 = 5,671.98/x
  3. Step 3: Cross multiply
    11,515.32x = 17,277.84 × 5,671.98
  4. Step 4: Simplify right side
    11,515.32x = 97,999,562.92
  5. Step 5: Solve for x
    x = 97,999,562.92/11,515.32
  6. Step 6: Final answer
    x = 8,510.36

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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.