Home / 15,452.26-21,312.79-10,145.14

Finding the Fourth Proportional to 15,452.26, 21,312.79 and 10,145.14

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Solution

The fourth proportional to 15,452.26, 21,312.79 and 10,145.14 is: 13,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.26 : 21,312.79 = 10,145.14 : x
  2. Step 2: Convert to fraction form
    15,452.26/21,312.79 = 10,145.14/x
  3. Step 3: Cross multiply
    15,452.26x = 21,312.79 × 10,145.14
  4. Step 4: Simplify right side
    15,452.26x = 216,221,238.34
  5. Step 5: Solve for x
    x = 216,221,238.34/15,452.26
  6. Step 6: Final answer
    x = 13,992.86

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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.