Home / 13,910.33-20,873.70-5,151.40

Finding the Fourth Proportional to 13,910.33, 20,873.70 and 5,151.40

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Solution

The fourth proportional to 13,910.33, 20,873.70 and 5,151.40 is: 7,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.33 : 20,873.70 = 5,151.40 : x
  2. Step 2: Convert to fraction form
    13,910.33/20,873.70 = 5,151.40/x
  3. Step 3: Cross multiply
    13,910.33x = 20,873.70 × 5,151.40
  4. Step 4: Simplify right side
    13,910.33x = 107,528,726.00
  5. Step 5: Solve for x
    x = 107,528,726.00/13,910.33
  6. Step 6: Final answer
    x = 7,730.13

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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.