Home / 19,157.64-28,726.20-8,474.28

Finding the Fourth Proportional to 19,157.64, 28,726.20 and 8,474.28

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Solution

The fourth proportional to 19,157.64, 28,726.20 and 8,474.28 is: 12,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.64 : 28,726.20 = 8,474.28 : x
  2. Step 2: Convert to fraction form
    19,157.64/28,726.20 = 8,474.28/x
  3. Step 3: Cross multiply
    19,157.64x = 28,726.20 × 8,474.28
  4. Step 4: Simplify right side
    19,157.64x = 243,433,862.14
  5. Step 5: Solve for x
    x = 243,433,862.14/19,157.64
  6. Step 6: Final answer
    x = 12,706.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.