Home / 13,857.35-20,780.66-4,495.12

Finding the Fourth Proportional to 13,857.35, 20,780.66 and 4,495.12

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Solution

The fourth proportional to 13,857.35, 20,780.66 and 4,495.12 is: 6,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.35 : 20,780.66 = 4,495.12 : x
  2. Step 2: Convert to fraction form
    13,857.35/20,780.66 = 4,495.12/x
  3. Step 3: Cross multiply
    13,857.35x = 20,780.66 × 4,495.12
  4. Step 4: Simplify right side
    13,857.35x = 93,411,434.00
  5. Step 5: Solve for x
    x = 93,411,434.00/13,857.35
  6. Step 6: Final answer
    x = 6,740.93

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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.