Home / 11,284.20-15,555.97-7,916.58

Finding the Fourth Proportional to 11,284.20, 15,555.97 and 7,916.58

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Solution

The fourth proportional to 11,284.20, 15,555.97 and 7,916.58 is: 10,913.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,284.20 : 15,555.97 = 7,916.58 : x
  2. Step 2: Convert to fraction form
    11,284.20/15,555.97 = 7,916.58/x
  3. Step 3: Cross multiply
    11,284.20x = 15,555.97 × 7,916.58
  4. Step 4: Simplify right side
    11,284.20x = 123,150,061.19
  5. Step 5: Solve for x
    x = 123,150,061.19/11,284.20
  6. Step 6: Final answer
    x = 10,913.50

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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.