Home / 12,218.16-16,858.24-6,911.84

Finding the Fourth Proportional to 12,218.16, 16,858.24 and 6,911.84

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Solution

The fourth proportional to 12,218.16, 16,858.24 and 6,911.84 is: 9,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.16 : 16,858.24 = 6,911.84 : x
  2. Step 2: Convert to fraction form
    12,218.16/16,858.24 = 6,911.84/x
  3. Step 3: Cross multiply
    12,218.16x = 16,858.24 × 6,911.84
  4. Step 4: Simplify right side
    12,218.16x = 116,521,457.56
  5. Step 5: Solve for x
    x = 116,521,457.56/12,218.16
  6. Step 6: Final answer
    x = 9,536.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.