Home / 8,905.79-13,357.38-2,665.55

Finding the Fourth Proportional to 8,905.79, 13,357.38 and 2,665.55

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Solution

The fourth proportional to 8,905.79, 13,357.38 and 2,665.55 is: 3,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.79 : 13,357.38 = 2,665.55 : x
  2. Step 2: Convert to fraction form
    8,905.79/13,357.38 = 2,665.55/x
  3. Step 3: Cross multiply
    8,905.79x = 13,357.38 × 2,665.55
  4. Step 4: Simplify right side
    8,905.79x = 35,604,697.47
  5. Step 5: Solve for x
    x = 35,604,697.47/8,905.79
  6. Step 6: Final answer
    x = 3,997.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.