Home / 15,736.51-21,719.64-9,772.08

Finding the Fourth Proportional to 15,736.51, 21,719.64 and 9,772.08

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Solution

The fourth proportional to 15,736.51, 21,719.64 and 9,772.08 is: 13,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.51 : 21,719.64 = 9,772.08 : x
  2. Step 2: Convert to fraction form
    15,736.51/21,719.64 = 9,772.08/x
  3. Step 3: Cross multiply
    15,736.51x = 21,719.64 × 9,772.08
  4. Step 4: Simplify right side
    15,736.51x = 212,246,059.65
  5. Step 5: Solve for x
    x = 212,246,059.65/15,736.51
  6. Step 6: Final answer
    x = 13,487.49

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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.