Home / 11,135.64-15,377.52-8,336.28

Finding the Fourth Proportional to 11,135.64, 15,377.52 and 8,336.28

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Solution

The fourth proportional to 11,135.64, 15,377.52 and 8,336.28 is: 11,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.64 : 15,377.52 = 8,336.28 : x
  2. Step 2: Convert to fraction form
    11,135.64/15,377.52 = 8,336.28/x
  3. Step 3: Cross multiply
    11,135.64x = 15,377.52 × 8,336.28
  4. Step 4: Simplify right side
    11,135.64x = 128,191,312.43
  5. Step 5: Solve for x
    x = 128,191,312.43/11,135.64
  6. Step 6: Final answer
    x = 11,511.80

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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.