Home / 10,137.12-13,982.88-6,154.32

Finding the Fourth Proportional to 10,137.12, 13,982.88 and 6,154.32

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Solution

The fourth proportional to 10,137.12, 13,982.88 and 6,154.32 is: 8,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.12 : 13,982.88 = 6,154.32 : x
  2. Step 2: Convert to fraction form
    10,137.12/13,982.88 = 6,154.32/x
  3. Step 3: Cross multiply
    10,137.12x = 13,982.88 × 6,154.32
  4. Step 4: Simplify right side
    10,137.12x = 86,055,118.04
  5. Step 5: Solve for x
    x = 86,055,118.04/10,137.12
  6. Step 6: Final answer
    x = 8,489.11

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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.