Home / 15,274.56-21,079.26-8,468.45

Finding the Fourth Proportional to 15,274.56, 21,079.26 and 8,468.45

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Solution

The fourth proportional to 15,274.56, 21,079.26 and 8,468.45 is: 11,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.56 : 21,079.26 = 8,468.45 : x
  2. Step 2: Convert to fraction form
    15,274.56/21,079.26 = 8,468.45/x
  3. Step 3: Cross multiply
    15,274.56x = 21,079.26 × 8,468.45
  4. Step 4: Simplify right side
    15,274.56x = 178,508,659.35
  5. Step 5: Solve for x
    x = 178,508,659.35/15,274.56
  6. Step 6: Final answer
    x = 11,686.66

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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.