Home / 13,800.59-20,698.66-3,937.56

Finding the Fourth Proportional to 13,800.59, 20,698.66 and 3,937.56

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Solution

The fourth proportional to 13,800.59, 20,698.66 and 3,937.56 is: 5,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.59 : 20,698.66 = 3,937.56 : x
  2. Step 2: Convert to fraction form
    13,800.59/20,698.66 = 3,937.56/x
  3. Step 3: Cross multiply
    13,800.59x = 20,698.66 × 3,937.56
  4. Step 4: Simplify right side
    13,800.59x = 81,502,159.63
  5. Step 5: Solve for x
    x = 81,502,159.63/13,800.59
  6. Step 6: Final answer
    x = 5,905.70

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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.