Home / 15,108.24-20,859.59-9,150.29

Finding the Fourth Proportional to 15,108.24, 20,859.59 and 9,150.29

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Solution

The fourth proportional to 15,108.24, 20,859.59 and 9,150.29 is: 12,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.24 : 20,859.59 = 9,150.29 : x
  2. Step 2: Convert to fraction form
    15,108.24/20,859.59 = 9,150.29/x
  3. Step 3: Cross multiply
    15,108.24x = 20,859.59 × 9,150.29
  4. Step 4: Simplify right side
    15,108.24x = 190,871,297.78
  5. Step 5: Solve for x
    x = 190,871,297.78/15,108.24
  6. Step 6: Final answer
    x = 12,633.59

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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.