Home / 11,320.57-15,622.89-6,284.86

Finding the Fourth Proportional to 11,320.57, 15,622.89 and 6,284.86

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Solution

The fourth proportional to 11,320.57, 15,622.89 and 6,284.86 is: 8,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.57 : 15,622.89 = 6,284.86 : x
  2. Step 2: Convert to fraction form
    11,320.57/15,622.89 = 6,284.86/x
  3. Step 3: Cross multiply
    11,320.57x = 15,622.89 × 6,284.86
  4. Step 4: Simplify right side
    11,320.57x = 98,187,676.45
  5. Step 5: Solve for x
    x = 98,187,676.45/11,320.57
  6. Step 6: Final answer
    x = 8,673.39

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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.