Home / 19,679.57-27,157.47-10,727.15

Finding the Fourth Proportional to 19,679.57, 27,157.47 and 10,727.15

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Solution

The fourth proportional to 19,679.57, 27,157.47 and 10,727.15 is: 14,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.57 : 27,157.47 = 10,727.15 : x
  2. Step 2: Convert to fraction form
    19,679.57/27,157.47 = 10,727.15/x
  3. Step 3: Cross multiply
    19,679.57x = 27,157.47 × 10,727.15
  4. Step 4: Simplify right side
    19,679.57x = 291,322,254.31
  5. Step 5: Solve for x
    x = 291,322,254.31/19,679.57
  6. Step 6: Final answer
    x = 14,803.28

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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.