Home / 19,771.24-27,263.64-12,691.84

Finding the Fourth Proportional to 19,771.24, 27,263.64 and 12,691.84

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Solution

The fourth proportional to 19,771.24, 27,263.64 and 12,691.84 is: 17,501.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.24 : 27,263.64 = 12,691.84 : x
  2. Step 2: Convert to fraction form
    19,771.24/27,263.64 = 12,691.84/x
  3. Step 3: Cross multiply
    19,771.24x = 27,263.64 × 12,691.84
  4. Step 4: Simplify right side
    19,771.24x = 346,025,756.70
  5. Step 5: Solve for x
    x = 346,025,756.70/19,771.24
  6. Step 6: Final answer
    x = 17,501.47

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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.