Home / 8,666.07-13,000.47-2,821.32

Finding the Fourth Proportional to 8,666.07, 13,000.47 and 2,821.32

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Solution

The fourth proportional to 8,666.07, 13,000.47 and 2,821.32 is: 4,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.07 : 13,000.47 = 2,821.32 : x
  2. Step 2: Convert to fraction form
    8,666.07/13,000.47 = 2,821.32/x
  3. Step 3: Cross multiply
    8,666.07x = 13,000.47 × 2,821.32
  4. Step 4: Simplify right side
    8,666.07x = 36,678,486.02
  5. Step 5: Solve for x
    x = 36,678,486.02/8,666.07
  6. Step 6: Final answer
    x = 4,232.42

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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.