Home / 19,708.85-27,204.24-12,157.53

Finding the Fourth Proportional to 19,708.85, 27,204.24 and 12,157.53

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Solution

The fourth proportional to 19,708.85, 27,204.24 and 12,157.53 is: 16,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.85 : 27,204.24 = 12,157.53 : x
  2. Step 2: Convert to fraction form
    19,708.85/27,204.24 = 12,157.53/x
  3. Step 3: Cross multiply
    19,708.85x = 27,204.24 × 12,157.53
  4. Step 4: Simplify right side
    19,708.85x = 330,736,363.93
  5. Step 5: Solve for x
    x = 330,736,363.93/19,708.85
  6. Step 6: Final answer
    x = 16,781.11

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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.