Home / 13,867.89-20,802.24-4,507.80

Finding the Fourth Proportional to 13,867.89, 20,802.24 and 4,507.80

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Solution

The fourth proportional to 13,867.89, 20,802.24 and 4,507.80 is: 6,761.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.89 : 20,802.24 = 4,507.80 : x
  2. Step 2: Convert to fraction form
    13,867.89/20,802.24 = 4,507.80/x
  3. Step 3: Cross multiply
    13,867.89x = 20,802.24 × 4,507.80
  4. Step 4: Simplify right side
    13,867.89x = 93,772,337.47
  5. Step 5: Solve for x
    x = 93,772,337.47/13,867.89
  6. Step 6: Final answer
    x = 6,761.83

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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.