Home / 13,330.89-20,008.63-6,761.68

Finding the Fourth Proportional to 13,330.89, 20,008.63 and 6,761.68

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Solution

The fourth proportional to 13,330.89, 20,008.63 and 6,761.68 is: 10,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.89 : 20,008.63 = 6,761.68 : x
  2. Step 2: Convert to fraction form
    13,330.89/20,008.63 = 6,761.68/x
  3. Step 3: Cross multiply
    13,330.89x = 20,008.63 × 6,761.68
  4. Step 4: Simplify right side
    13,330.89x = 135,291,953.30
  5. Step 5: Solve for x
    x = 135,291,953.30/13,330.89
  6. Step 6: Final answer
    x = 10,148.76

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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.