Home / 8,985.23-12,399.99-5,006.33

Finding the Fourth Proportional to 8,985.23, 12,399.99 and 5,006.33

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Solution

The fourth proportional to 8,985.23, 12,399.99 and 5,006.33 is: 6,908.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.23 : 12,399.99 = 5,006.33 : x
  2. Step 2: Convert to fraction form
    8,985.23/12,399.99 = 5,006.33/x
  3. Step 3: Cross multiply
    8,985.23x = 12,399.99 × 5,006.33
  4. Step 4: Simplify right side
    8,985.23x = 62,078,379.94
  5. Step 5: Solve for x
    x = 62,078,379.94/8,985.23
  6. Step 6: Final answer
    x = 6,908.94

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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.