Home / 19,873.08-27,426.20-13,146.98

Finding the Fourth Proportional to 19,873.08, 27,426.20 and 13,146.98

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Solution

The fourth proportional to 19,873.08, 27,426.20 and 13,146.98 is: 18,143.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.08 : 27,426.20 = 13,146.98 : x
  2. Step 2: Convert to fraction form
    19,873.08/27,426.20 = 13,146.98/x
  3. Step 3: Cross multiply
    19,873.08x = 27,426.20 × 13,146.98
  4. Step 4: Simplify right side
    19,873.08x = 360,571,500.01
  5. Step 5: Solve for x
    x = 360,571,500.01/19,873.08
  6. Step 6: Final answer
    x = 18,143.72

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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.