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Finding the Fourth Proportional to 9,855.87, 13,602.09 and 6,079.65

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Solution

The fourth proportional to 9,855.87, 13,602.09 and 6,079.65 is: 8,390.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.87 : 13,602.09 = 6,079.65 : x
  2. Step 2: Convert to fraction form
    9,855.87/13,602.09 = 6,079.65/x
  3. Step 3: Cross multiply
    9,855.87x = 13,602.09 × 6,079.65
  4. Step 4: Simplify right side
    9,855.87x = 82,695,946.47
  5. Step 5: Solve for x
    x = 82,695,946.47/9,855.87
  6. Step 6: Final answer
    x = 8,390.53

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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.