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Finding the Fourth Proportional to 8,621.04, 11,898.32 and 5,265.79

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Solution

The fourth proportional to 8,621.04, 11,898.32 and 5,265.79 is: 7,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.04 : 11,898.32 = 5,265.79 : x
  2. Step 2: Convert to fraction form
    8,621.04/11,898.32 = 5,265.79/x
  3. Step 3: Cross multiply
    8,621.04x = 11,898.32 × 5,265.79
  4. Step 4: Simplify right side
    8,621.04x = 62,654,054.47
  5. Step 5: Solve for x
    x = 62,654,054.47/8,621.04
  6. Step 6: Final answer
    x = 7,267.57

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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.