Home / 13,816.58-20,702.63-8,267.29

Finding the Fourth Proportional to 13,816.58, 20,702.63 and 8,267.29

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Solution

The fourth proportional to 13,816.58, 20,702.63 and 8,267.29 is: 12,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.58 : 20,702.63 = 8,267.29 : x
  2. Step 2: Convert to fraction form
    13,816.58/20,702.63 = 8,267.29/x
  3. Step 3: Cross multiply
    13,816.58x = 20,702.63 × 8,267.29
  4. Step 4: Simplify right side
    13,816.58x = 171,154,614.88
  5. Step 5: Solve for x
    x = 171,154,614.88/13,816.58
  6. Step 6: Final answer
    x = 12,387.63

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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.