Home / 10,105.74-13,937.67-8,484.39

Finding the Fourth Proportional to 10,105.74, 13,937.67 and 8,484.39

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Solution

The fourth proportional to 10,105.74, 13,937.67 and 8,484.39 is: 11,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.74 : 13,937.67 = 8,484.39 : x
  2. Step 2: Convert to fraction form
    10,105.74/13,937.67 = 8,484.39/x
  3. Step 3: Cross multiply
    10,105.74x = 13,937.67 × 8,484.39
  4. Step 4: Simplify right side
    10,105.74x = 118,252,627.97
  5. Step 5: Solve for x
    x = 118,252,627.97/10,105.74
  6. Step 6: Final answer
    x = 11,701.53

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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.