Home / 13,842.78-20,767.47-4,482.81

Finding the Fourth Proportional to 13,842.78, 20,767.47 and 4,482.81

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Solution

The fourth proportional to 13,842.78, 20,767.47 and 4,482.81 is: 6,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.78 : 20,767.47 = 4,482.81 : x
  2. Step 2: Convert to fraction form
    13,842.78/20,767.47 = 4,482.81/x
  3. Step 3: Cross multiply
    13,842.78x = 20,767.47 × 4,482.81
  4. Step 4: Simplify right side
    13,842.78x = 93,096,622.19
  5. Step 5: Solve for x
    x = 93,096,622.19/13,842.78
  6. Step 6: Final answer
    x = 6,725.28

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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.