Home / 11,116.20-16,682.40-7,417.20

Finding the Fourth Proportional to 11,116.20, 16,682.40 and 7,417.20

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Solution

The fourth proportional to 11,116.20, 16,682.40 and 7,417.20 is: 11,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.20 : 16,682.40 = 7,417.20 : x
  2. Step 2: Convert to fraction form
    11,116.20/16,682.40 = 7,417.20/x
  3. Step 3: Cross multiply
    11,116.20x = 16,682.40 × 7,417.20
  4. Step 4: Simplify right side
    11,116.20x = 123,736,697.28
  5. Step 5: Solve for x
    x = 123,736,697.28/11,116.20
  6. Step 6: Final answer
    x = 11,131.20

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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.