Home / 13,902.15-20,853.23-6,513.74

Finding the Fourth Proportional to 13,902.15, 20,853.23 and 6,513.74

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Solution

The fourth proportional to 13,902.15, 20,853.23 and 6,513.74 is: 9,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.15 : 20,853.23 = 6,513.74 : x
  2. Step 2: Convert to fraction form
    13,902.15/20,853.23 = 6,513.74/x
  3. Step 3: Cross multiply
    13,902.15x = 20,853.23 × 6,513.74
  4. Step 4: Simplify right side
    13,902.15x = 135,832,381.55
  5. Step 5: Solve for x
    x = 135,832,381.55/13,902.15
  6. Step 6: Final answer
    x = 9,770.60

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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.