Home / 15,896.08-21,936.72-9,612.64

Finding the Fourth Proportional to 15,896.08, 21,936.72 and 9,612.64

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Solution

The fourth proportional to 15,896.08, 21,936.72 and 9,612.64 is: 13,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,896.08 : 21,936.72 = 9,612.64 : x
  2. Step 2: Convert to fraction form
    15,896.08/21,936.72 = 9,612.64/x
  3. Step 3: Cross multiply
    15,896.08x = 21,936.72 × 9,612.64
  4. Step 4: Simplify right side
    15,896.08x = 210,869,792.14
  5. Step 5: Solve for x
    x = 210,869,792.14/15,896.08
  6. Step 6: Final answer
    x = 13,265.52

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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.