Home / 10,818.87-16,196.67-9,781.26

Finding the Fourth Proportional to 10,818.87, 16,196.67 and 9,781.26

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Solution

The fourth proportional to 10,818.87, 16,196.67 and 9,781.26 is: 14,643.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.87 : 16,196.67 = 9,781.26 : x
  2. Step 2: Convert to fraction form
    10,818.87/16,196.67 = 9,781.26/x
  3. Step 3: Cross multiply
    10,818.87x = 16,196.67 × 9,781.26
  4. Step 4: Simplify right side
    10,818.87x = 158,423,840.40
  5. Step 5: Solve for x
    x = 158,423,840.40/10,818.87
  6. Step 6: Final answer
    x = 14,643.29

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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.