Home / 8,840.39-12,199.66-4,807.20

Finding the Fourth Proportional to 8,840.39, 12,199.66 and 4,807.20

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Solution

The fourth proportional to 8,840.39, 12,199.66 and 4,807.20 is: 6,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.39 : 12,199.66 = 4,807.20 : x
  2. Step 2: Convert to fraction form
    8,840.39/12,199.66 = 4,807.20/x
  3. Step 3: Cross multiply
    8,840.39x = 12,199.66 × 4,807.20
  4. Step 4: Simplify right side
    8,840.39x = 58,646,197.70
  5. Step 5: Solve for x
    x = 58,646,197.70/8,840.39
  6. Step 6: Final answer
    x = 6,633.89

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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.