Home / 18,898.40-26,079.80-10,400.52

Finding the Fourth Proportional to 18,898.40, 26,079.80 and 10,400.52

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Solution

The fourth proportional to 18,898.40, 26,079.80 and 10,400.52 is: 14,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.40 : 26,079.80 = 10,400.52 : x
  2. Step 2: Convert to fraction form
    18,898.40/26,079.80 = 10,400.52/x
  3. Step 3: Cross multiply
    18,898.40x = 26,079.80 × 10,400.52
  4. Step 4: Simplify right side
    18,898.40x = 271,243,481.50
  5. Step 5: Solve for x
    x = 271,243,481.50/18,898.40
  6. Step 6: Final answer
    x = 14,352.72

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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.