Home / 11,240.36-16,855.15-5,312.31

Finding the Fourth Proportional to 11,240.36, 16,855.15 and 5,312.31

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Solution

The fourth proportional to 11,240.36, 16,855.15 and 5,312.31 is: 7,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.36 : 16,855.15 = 5,312.31 : x
  2. Step 2: Convert to fraction form
    11,240.36/16,855.15 = 5,312.31/x
  3. Step 3: Cross multiply
    11,240.36x = 16,855.15 × 5,312.31
  4. Step 4: Simplify right side
    11,240.36x = 89,539,781.90
  5. Step 5: Solve for x
    x = 89,539,781.90/11,240.36
  6. Step 6: Final answer
    x = 7,965.92

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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.