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Finding the Fourth Proportional to 8,155.74, 12,204.45 and 7,063.86

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Solution

The fourth proportional to 8,155.74, 12,204.45 and 7,063.86 is: 10,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.74 : 12,204.45 = 7,063.86 : x
  2. Step 2: Convert to fraction form
    8,155.74/12,204.45 = 7,063.86/x
  3. Step 3: Cross multiply
    8,155.74x = 12,204.45 × 7,063.86
  4. Step 4: Simplify right side
    8,155.74x = 86,210,526.18
  5. Step 5: Solve for x
    x = 86,210,526.18/8,155.74
  6. Step 6: Final answer
    x = 10,570.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.