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Finding the Fourth Proportional to 8,353.77, 12,530.96 and 2,807.30

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Solution

The fourth proportional to 8,353.77, 12,530.96 and 2,807.30 is: 4,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.77 : 12,530.96 = 2,807.30 : x
  2. Step 2: Convert to fraction form
    8,353.77/12,530.96 = 2,807.30/x
  3. Step 3: Cross multiply
    8,353.77x = 12,530.96 × 2,807.30
  4. Step 4: Simplify right side
    8,353.77x = 35,178,164.01
  5. Step 5: Solve for x
    x = 35,178,164.01/8,353.77
  6. Step 6: Final answer
    x = 4,211.05

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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.