Home / 13,659.86-20,484.60-6,536.78

Finding the Fourth Proportional to 13,659.86, 20,484.60 and 6,536.78

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Solution

The fourth proportional to 13,659.86, 20,484.60 and 6,536.78 is: 9,802.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.86 : 20,484.60 = 6,536.78 : x
  2. Step 2: Convert to fraction form
    13,659.86/20,484.60 = 6,536.78/x
  3. Step 3: Cross multiply
    13,659.86x = 20,484.60 × 6,536.78
  4. Step 4: Simplify right side
    13,659.86x = 133,903,388.70
  5. Step 5: Solve for x
    x = 133,903,388.70/13,659.86
  6. Step 6: Final answer
    x = 9,802.69

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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.