Home / 8,657.89-11,945.08-5,297.20

Finding the Fourth Proportional to 8,657.89, 11,945.08 and 5,297.20

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Solution

The fourth proportional to 8,657.89, 11,945.08 and 5,297.20 is: 7,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.89 : 11,945.08 = 5,297.20 : x
  2. Step 2: Convert to fraction form
    8,657.89/11,945.08 = 5,297.20/x
  3. Step 3: Cross multiply
    8,657.89x = 11,945.08 × 5,297.20
  4. Step 4: Simplify right side
    8,657.89x = 63,275,451.29
  5. Step 5: Solve for x
    x = 63,275,451.29/8,657.89
  6. Step 6: Final answer
    x = 7,308.41

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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.