Home / 10,439.36-15,659.12-2,648.16

Finding the Fourth Proportional to 10,439.36, 15,659.12 and 2,648.16

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Solution

The fourth proportional to 10,439.36, 15,659.12 and 2,648.16 is: 3,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.36 : 15,659.12 = 2,648.16 : x
  2. Step 2: Convert to fraction form
    10,439.36/15,659.12 = 2,648.16/x
  3. Step 3: Cross multiply
    10,439.36x = 15,659.12 × 2,648.16
  4. Step 4: Simplify right side
    10,439.36x = 41,467,855.22
  5. Step 5: Solve for x
    x = 41,467,855.22/10,439.36
  6. Step 6: Final answer
    x = 3,972.26

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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.