Home / 19,690.72-27,173.40-10,738.24

Finding the Fourth Proportional to 19,690.72, 27,173.40 and 10,738.24

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Solution

The fourth proportional to 19,690.72, 27,173.40 and 10,738.24 is: 14,818.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.72 : 27,173.40 = 10,738.24 : x
  2. Step 2: Convert to fraction form
    19,690.72/27,173.40 = 10,738.24/x
  3. Step 3: Cross multiply
    19,690.72x = 27,173.40 × 10,738.24
  4. Step 4: Simplify right side
    19,690.72x = 291,794,490.82
  5. Step 5: Solve for x
    x = 291,794,490.82/19,690.72
  6. Step 6: Final answer
    x = 14,818.88

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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.