Home / 8,390.16-12,583.08-4,006.80

Finding the Fourth Proportional to 8,390.16, 12,583.08 and 4,006.80

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Solution

The fourth proportional to 8,390.16, 12,583.08 and 4,006.80 is: 6,009.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.16 : 12,583.08 = 4,006.80 : x
  2. Step 2: Convert to fraction form
    8,390.16/12,583.08 = 4,006.80/x
  3. Step 3: Cross multiply
    8,390.16x = 12,583.08 × 4,006.80
  4. Step 4: Simplify right side
    8,390.16x = 50,417,884.94
  5. Step 5: Solve for x
    x = 50,417,884.94/8,390.16
  6. Step 6: Final answer
    x = 6,009.17

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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.