Home / 8,250.90-11,386.10-4,665.80

Finding the Fourth Proportional to 8,250.90, 11,386.10 and 4,665.80

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Solution

The fourth proportional to 8,250.90, 11,386.10 and 4,665.80 is: 6,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,250.90 : 11,386.10 = 4,665.80 : x
  2. Step 2: Convert to fraction form
    8,250.90/11,386.10 = 4,665.80/x
  3. Step 3: Cross multiply
    8,250.90x = 11,386.10 × 4,665.80
  4. Step 4: Simplify right side
    8,250.90x = 53,125,305.51
  5. Step 5: Solve for x
    x = 53,125,305.51/8,250.90
  6. Step 6: Final answer
    x = 6,438.73

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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.