Home / 13,913.08-20,874.48-6,122.50

Finding the Fourth Proportional to 13,913.08, 20,874.48 and 6,122.50

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Solution

The fourth proportional to 13,913.08, 20,874.48 and 6,122.50 is: 9,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.08 : 20,874.48 = 6,122.50 : x
  2. Step 2: Convert to fraction form
    13,913.08/20,874.48 = 6,122.50/x
  3. Step 3: Cross multiply
    13,913.08x = 20,874.48 × 6,122.50
  4. Step 4: Simplify right side
    13,913.08x = 127,804,003.80
  5. Step 5: Solve for x
    x = 127,804,003.80/13,913.08
  6. Step 6: Final answer
    x = 9,185.89

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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.