Home / 18,941.64-26,144.16-12,901.88

Finding the Fourth Proportional to 18,941.64, 26,144.16 and 12,901.88

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Solution

The fourth proportional to 18,941.64, 26,144.16 and 12,901.88 is: 17,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.64 : 26,144.16 = 12,901.88 : x
  2. Step 2: Convert to fraction form
    18,941.64/26,144.16 = 12,901.88/x
  3. Step 3: Cross multiply
    18,941.64x = 26,144.16 × 12,901.88
  4. Step 4: Simplify right side
    18,941.64x = 337,308,815.02
  5. Step 5: Solve for x
    x = 337,308,815.02/18,941.64
  6. Step 6: Final answer
    x = 17,807.79

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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.