Home / 10,911.35-15,059.62-6,434.83

Finding the Fourth Proportional to 10,911.35, 15,059.62 and 6,434.83

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Solution

The fourth proportional to 10,911.35, 15,059.62 and 6,434.83 is: 8,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.35 : 15,059.62 = 6,434.83 : x
  2. Step 2: Convert to fraction form
    10,911.35/15,059.62 = 6,434.83/x
  3. Step 3: Cross multiply
    10,911.35x = 15,059.62 × 6,434.83
  4. Step 4: Simplify right side
    10,911.35x = 96,906,094.56
  5. Step 5: Solve for x
    x = 96,906,094.56/10,911.35
  6. Step 6: Final answer
    x = 8,881.22

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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.