Home / 6,434.32-8,871.12-5,105.74

Finding the Fourth Proportional to 6,434.32, 8,871.12 and 5,105.74

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Solution

The fourth proportional to 6,434.32, 8,871.12 and 5,105.74 is: 7,039.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.32 : 8,871.12 = 5,105.74 : x
  2. Step 2: Convert to fraction form
    6,434.32/8,871.12 = 5,105.74/x
  3. Step 3: Cross multiply
    6,434.32x = 8,871.12 × 5,105.74
  4. Step 4: Simplify right side
    6,434.32x = 45,293,632.23
  5. Step 5: Solve for x
    x = 45,293,632.23/6,434.32
  6. Step 6: Final answer
    x = 7,039.38

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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.