Home / 15,301.45-21,113.16-10,272.97

Finding the Fourth Proportional to 15,301.45, 21,113.16 and 10,272.97

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Solution

The fourth proportional to 15,301.45, 21,113.16 and 10,272.97 is: 14,174.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.45 : 21,113.16 = 10,272.97 : x
  2. Step 2: Convert to fraction form
    15,301.45/21,113.16 = 10,272.97/x
  3. Step 3: Cross multiply
    15,301.45x = 21,113.16 × 10,272.97
  4. Step 4: Simplify right side
    15,301.45x = 216,894,859.29
  5. Step 5: Solve for x
    x = 216,894,859.29/15,301.45
  6. Step 6: Final answer
    x = 14,174.79

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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.