Home / 8,431.32-11,628.63-5,447.46

Finding the Fourth Proportional to 8,431.32, 11,628.63 and 5,447.46

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Solution

The fourth proportional to 8,431.32, 11,628.63 and 5,447.46 is: 7,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.32 : 11,628.63 = 5,447.46 : x
  2. Step 2: Convert to fraction form
    8,431.32/11,628.63 = 5,447.46/x
  3. Step 3: Cross multiply
    8,431.32x = 11,628.63 × 5,447.46
  4. Step 4: Simplify right side
    8,431.32x = 63,346,496.78
  5. Step 5: Solve for x
    x = 63,346,496.78/8,431.32
  6. Step 6: Final answer
    x = 7,513.24

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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.