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Finding the Fourth Proportional to 18,873.04, 26,043.78 and 10,489

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Solution

The fourth proportional to 18,873.04, 26,043.78 and 10,489 is: 14,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.04 : 26,043.78 = 10,489 : x
  2. Step 2: Convert to fraction form
    18,873.04/26,043.78 = 10,489/x
  3. Step 3: Cross multiply
    18,873.04x = 26,043.78 × 10,489
  4. Step 4: Simplify right side
    18,873.04x = 273,173,208.42
  5. Step 5: Solve for x
    x = 273,173,208.42/18,873.04
  6. Step 6: Final answer
    x = 14,474.26

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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.