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Finding the Fourth Proportional to 8,605, 11,873.74 and 4,776.58

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Solution

The fourth proportional to 8,605, 11,873.74 and 4,776.58 is: 6,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605 : 11,873.74 = 4,776.58 : x
  2. Step 2: Convert to fraction form
    8,605/11,873.74 = 4,776.58/x
  3. Step 3: Cross multiply
    8,605x = 11,873.74 × 4,776.58
  4. Step 4: Simplify right side
    8,605x = 56,715,869.01
  5. Step 5: Solve for x
    x = 56,715,869.01/8,605
  6. Step 6: Final answer
    x = 6,591.04

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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.