Home / 11,390.16-15,717.96-6,354.60

Finding the Fourth Proportional to 11,390.16, 15,717.96 and 6,354.60

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Solution

The fourth proportional to 11,390.16, 15,717.96 and 6,354.60 is: 8,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.16 : 15,717.96 = 6,354.60 : x
  2. Step 2: Convert to fraction form
    11,390.16/15,717.96 = 6,354.60/x
  3. Step 3: Cross multiply
    11,390.16x = 15,717.96 × 6,354.60
  4. Step 4: Simplify right side
    11,390.16x = 99,881,348.62
  5. Step 5: Solve for x
    x = 99,881,348.62/11,390.16
  6. Step 6: Final answer
    x = 8,769.09

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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.