Home / 18,890.74-28,341.58-7,204.88

Finding the Fourth Proportional to 18,890.74, 28,341.58 and 7,204.88

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Solution

The fourth proportional to 18,890.74, 28,341.58 and 7,204.88 is: 10,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.74 : 28,341.58 = 7,204.88 : x
  2. Step 2: Convert to fraction form
    18,890.74/28,341.58 = 7,204.88/x
  3. Step 3: Cross multiply
    18,890.74x = 28,341.58 × 7,204.88
  4. Step 4: Simplify right side
    18,890.74x = 204,197,682.91
  5. Step 5: Solve for x
    x = 204,197,682.91/18,890.74
  6. Step 6: Final answer
    x = 10,809.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.