Home / 15,227.42-21,007.68-10,125.38

Finding the Fourth Proportional to 15,227.42, 21,007.68 and 10,125.38

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Solution

The fourth proportional to 15,227.42, 21,007.68 and 10,125.38 is: 13,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.42 : 21,007.68 = 10,125.38 : x
  2. Step 2: Convert to fraction form
    15,227.42/21,007.68 = 10,125.38/x
  3. Step 3: Cross multiply
    15,227.42x = 21,007.68 × 10,125.38
  4. Step 4: Simplify right side
    15,227.42x = 212,710,742.92
  5. Step 5: Solve for x
    x = 212,710,742.92/15,227.42
  6. Step 6: Final answer
    x = 13,968.93

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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.