Home / 15,898.80-21,935.90-9,936.53

Finding the Fourth Proportional to 15,898.80, 21,935.90 and 9,936.53

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Solution

The fourth proportional to 15,898.80, 21,935.90 and 9,936.53 is: 13,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.80 : 21,935.90 = 9,936.53 : x
  2. Step 2: Convert to fraction form
    15,898.80/21,935.90 = 9,936.53/x
  3. Step 3: Cross multiply
    15,898.80x = 21,935.90 × 9,936.53
  4. Step 4: Simplify right side
    15,898.80x = 217,966,569.06
  5. Step 5: Solve for x
    x = 217,966,569.06/15,898.80
  6. Step 6: Final answer
    x = 13,709.62

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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.