Home / 7,985.43-11,020.08-4,448.70

Finding the Fourth Proportional to 7,985.43, 11,020.08 and 4,448.70

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Solution

The fourth proportional to 7,985.43, 11,020.08 and 4,448.70 is: 6,139.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.43 : 11,020.08 = 4,448.70 : x
  2. Step 2: Convert to fraction form
    7,985.43/11,020.08 = 4,448.70/x
  3. Step 3: Cross multiply
    7,985.43x = 11,020.08 × 4,448.70
  4. Step 4: Simplify right side
    7,985.43x = 49,025,029.90
  5. Step 5: Solve for x
    x = 49,025,029.90/7,985.43
  6. Step 6: Final answer
    x = 6,139.31

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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.