Home / 13,515.59-20,273.40-6,937.58

Finding the Fourth Proportional to 13,515.59, 20,273.40 and 6,937.58

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Solution

The fourth proportional to 13,515.59, 20,273.40 and 6,937.58 is: 10,406.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.59 : 20,273.40 = 6,937.58 : x
  2. Step 2: Convert to fraction form
    13,515.59/20,273.40 = 6,937.58/x
  3. Step 3: Cross multiply
    13,515.59x = 20,273.40 × 6,937.58
  4. Step 4: Simplify right side
    13,515.59x = 140,648,385.06
  5. Step 5: Solve for x
    x = 140,648,385.06/13,515.59
  6. Step 6: Final answer
    x = 10,406.38

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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.