Home / 13,890.60-20,840.70-6,098.28

Finding the Fourth Proportional to 13,890.60, 20,840.70 and 6,098.28

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Solution

The fourth proportional to 13,890.60, 20,840.70 and 6,098.28 is: 9,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.60 : 20,840.70 = 6,098.28 : x
  2. Step 2: Convert to fraction form
    13,890.60/20,840.70 = 6,098.28/x
  3. Step 3: Cross multiply
    13,890.60x = 20,840.70 × 6,098.28
  4. Step 4: Simplify right side
    13,890.60x = 127,092,424.00
  5. Step 5: Solve for x
    x = 127,092,424.00/13,890.60
  6. Step 6: Final answer
    x = 9,149.53

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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.