Home / 11,356.26-15,671.52-6,639.63

Finding the Fourth Proportional to 11,356.26, 15,671.52 and 6,639.63

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Solution

The fourth proportional to 11,356.26, 15,671.52 and 6,639.63 is: 9,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.26 : 15,671.52 = 6,639.63 : x
  2. Step 2: Convert to fraction form
    11,356.26/15,671.52 = 6,639.63/x
  3. Step 3: Cross multiply
    11,356.26x = 15,671.52 × 6,639.63
  4. Step 4: Simplify right side
    11,356.26x = 104,053,094.34
  5. Step 5: Solve for x
    x = 104,053,094.34/11,356.26
  6. Step 6: Final answer
    x = 9,162.62

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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.