Home / 13,213.80-19,827.88-7,671.13

Finding the Fourth Proportional to 13,213.80, 19,827.88 and 7,671.13

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Solution

The fourth proportional to 13,213.80, 19,827.88 and 7,671.13 is: 11,510.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.80 : 19,827.88 = 7,671.13 : x
  2. Step 2: Convert to fraction form
    13,213.80/19,827.88 = 7,671.13/x
  3. Step 3: Cross multiply
    13,213.80x = 19,827.88 × 7,671.13
  4. Step 4: Simplify right side
    13,213.80x = 152,102,245.10
  5. Step 5: Solve for x
    x = 152,102,245.10/13,213.80
  6. Step 6: Final answer
    x = 11,510.86

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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.