Home / 9,898.45-13,656.09-6,120.41

Finding the Fourth Proportional to 9,898.45, 13,656.09 and 6,120.41

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Solution

The fourth proportional to 9,898.45, 13,656.09 and 6,120.41 is: 8,443.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.45 : 13,656.09 = 6,120.41 : x
  2. Step 2: Convert to fraction form
    9,898.45/13,656.09 = 6,120.41/x
  3. Step 3: Cross multiply
    9,898.45x = 13,656.09 × 6,120.41
  4. Step 4: Simplify right side
    9,898.45x = 83,580,801.52
  5. Step 5: Solve for x
    x = 83,580,801.52/9,898.45
  6. Step 6: Final answer
    x = 8,443.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.