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Finding the Fourth Proportional to 8,550.77, 12,808.16 and 4,378.10

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Solution

The fourth proportional to 8,550.77, 12,808.16 and 4,378.10 is: 6,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,550.77 : 12,808.16 = 4,378.10 : x
  2. Step 2: Convert to fraction form
    8,550.77/12,808.16 = 4,378.10/x
  3. Step 3: Cross multiply
    8,550.77x = 12,808.16 × 4,378.10
  4. Step 4: Simplify right side
    8,550.77x = 56,075,383.41
  5. Step 5: Solve for x
    x = 56,075,383.41/8,550.77
  6. Step 6: Final answer
    x = 6,557.93

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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.