Home / 11,118.68-15,340.48-6,402.84

Finding the Fourth Proportional to 11,118.68, 15,340.48 and 6,402.84

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Solution

The fourth proportional to 11,118.68, 15,340.48 and 6,402.84 is: 8,834.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.68 : 15,340.48 = 6,402.84 : x
  2. Step 2: Convert to fraction form
    11,118.68/15,340.48 = 6,402.84/x
  3. Step 3: Cross multiply
    11,118.68x = 15,340.48 × 6,402.84
  4. Step 4: Simplify right side
    11,118.68x = 98,222,638.96
  5. Step 5: Solve for x
    x = 98,222,638.96/11,118.68
  6. Step 6: Final answer
    x = 8,834.02

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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.