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Finding the Fourth Proportional to 8,776.66, 12,111.79 and 4,797.77

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Solution

The fourth proportional to 8,776.66, 12,111.79 and 4,797.77 is: 6,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.66 : 12,111.79 = 4,797.77 : x
  2. Step 2: Convert to fraction form
    8,776.66/12,111.79 = 4,797.77/x
  3. Step 3: Cross multiply
    8,776.66x = 12,111.79 × 4,797.77
  4. Step 4: Simplify right side
    8,776.66x = 58,109,582.71
  5. Step 5: Solve for x
    x = 58,109,582.71/8,776.66
  6. Step 6: Final answer
    x = 6,620.92

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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.