Home / 10,009.12-15,013.44-2,613.64

Finding the Fourth Proportional to 10,009.12, 15,013.44 and 2,613.64

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Solution

The fourth proportional to 10,009.12, 15,013.44 and 2,613.64 is: 3,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,009.12 : 15,013.44 = 2,613.64 : x
  2. Step 2: Convert to fraction form
    10,009.12/15,013.44 = 2,613.64/x
  3. Step 3: Cross multiply
    10,009.12x = 15,013.44 × 2,613.64
  4. Step 4: Simplify right side
    10,009.12x = 39,239,727.32
  5. Step 5: Solve for x
    x = 39,239,727.32/10,009.12
  6. Step 6: Final answer
    x = 3,920.40

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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.