Home / 8,434.30-12,653.39-2,887.64

Finding the Fourth Proportional to 8,434.30, 12,653.39 and 2,887.64

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Solution

The fourth proportional to 8,434.30, 12,653.39 and 2,887.64 is: 4,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.30 : 12,653.39 = 2,887.64 : x
  2. Step 2: Convert to fraction form
    8,434.30/12,653.39 = 2,887.64/x
  3. Step 3: Cross multiply
    8,434.30x = 12,653.39 × 2,887.64
  4. Step 4: Simplify right side
    8,434.30x = 36,538,400.59
  5. Step 5: Solve for x
    x = 36,538,400.59/8,434.30
  6. Step 6: Final answer
    x = 4,332.12

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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.