Home / 9,898.12-13,659-5,918.48

Finding the Fourth Proportional to 9,898.12, 13,659 and 5,918.48

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Solution

The fourth proportional to 9,898.12, 13,659 and 5,918.48 is: 8,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.12 : 13,659 = 5,918.48 : x
  2. Step 2: Convert to fraction form
    9,898.12/13,659 = 5,918.48/x
  3. Step 3: Cross multiply
    9,898.12x = 13,659 × 5,918.48
  4. Step 4: Simplify right side
    9,898.12x = 80,840,518.32
  5. Step 5: Solve for x
    x = 80,840,518.32/9,898.12
  6. Step 6: Final answer
    x = 8,167.26

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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.