Home / 8,666.28-13,000.50-2,821.32

Finding the Fourth Proportional to 8,666.28, 13,000.50 and 2,821.32

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Solution

The fourth proportional to 8,666.28, 13,000.50 and 2,821.32 is: 4,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.28 : 13,000.50 = 2,821.32 : x
  2. Step 2: Convert to fraction form
    8,666.28/13,000.50 = 2,821.32/x
  3. Step 3: Cross multiply
    8,666.28x = 13,000.50 × 2,821.32
  4. Step 4: Simplify right side
    8,666.28x = 36,678,570.66
  5. Step 5: Solve for x
    x = 36,678,570.66/8,666.28
  6. Step 6: Final answer
    x = 4,232.33

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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.