Home / 8,999.30-12,418.88-5,020.31

Finding the Fourth Proportional to 8,999.30, 12,418.88 and 5,020.31

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Solution

The fourth proportional to 8,999.30, 12,418.88 and 5,020.31 is: 6,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.30 : 12,418.88 = 5,020.31 : x
  2. Step 2: Convert to fraction form
    8,999.30/12,418.88 = 5,020.31/x
  3. Step 3: Cross multiply
    8,999.30x = 12,418.88 × 5,020.31
  4. Step 4: Simplify right side
    8,999.30x = 62,346,627.45
  5. Step 5: Solve for x
    x = 62,346,627.45/8,999.30
  6. Step 6: Final answer
    x = 6,927.94

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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.