Home / 15,918.32-21,967.44-8,845.52

Finding the Fourth Proportional to 15,918.32, 21,967.44 and 8,845.52

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Solution

The fourth proportional to 15,918.32, 21,967.44 and 8,845.52 is: 12,206.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.32 : 21,967.44 = 8,845.52 : x
  2. Step 2: Convert to fraction form
    15,918.32/21,967.44 = 8,845.52/x
  3. Step 3: Cross multiply
    15,918.32x = 21,967.44 × 8,845.52
  4. Step 4: Simplify right side
    15,918.32x = 194,313,429.87
  5. Step 5: Solve for x
    x = 194,313,429.87/15,918.32
  6. Step 6: Final answer
    x = 12,206.91

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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.