Home / 19,713.81-27,158.85-13,734.66

Finding the Fourth Proportional to 19,713.81, 27,158.85 and 13,734.66

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Solution

The fourth proportional to 19,713.81, 27,158.85 and 13,734.66 is: 18,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,713.81 : 27,158.85 = 13,734.66 : x
  2. Step 2: Convert to fraction form
    19,713.81/27,158.85 = 13,734.66/x
  3. Step 3: Cross multiply
    19,713.81x = 27,158.85 × 13,734.66
  4. Step 4: Simplify right side
    19,713.81x = 373,017,570.74
  5. Step 5: Solve for x
    x = 373,017,570.74/19,713.81
  6. Step 6: Final answer
    x = 18,921.64

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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.