Home / 8,434.40-11,643.44-6,286.32

Finding the Fourth Proportional to 8,434.40, 11,643.44 and 6,286.32

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Solution

The fourth proportional to 8,434.40, 11,643.44 and 6,286.32 is: 8,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.40 : 11,643.44 = 6,286.32 : x
  2. Step 2: Convert to fraction form
    8,434.40/11,643.44 = 6,286.32/x
  3. Step 3: Cross multiply
    8,434.40x = 11,643.44 × 6,286.32
  4. Step 4: Simplify right side
    8,434.40x = 73,194,389.74
  5. Step 5: Solve for x
    x = 73,194,389.74/8,434.40
  6. Step 6: Final answer
    x = 8,678.08

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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.