Home / 18,910.19-28,358.53-6,257.63

Finding the Fourth Proportional to 18,910.19, 28,358.53 and 6,257.63

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Solution

The fourth proportional to 18,910.19, 28,358.53 and 6,257.63 is: 9,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.19 : 28,358.53 = 6,257.63 : x
  2. Step 2: Convert to fraction form
    18,910.19/28,358.53 = 6,257.63/x
  3. Step 3: Cross multiply
    18,910.19x = 28,358.53 × 6,257.63
  4. Step 4: Simplify right side
    18,910.19x = 177,457,030.65
  5. Step 5: Solve for x
    x = 177,457,030.65/18,910.19
  6. Step 6: Final answer
    x = 9,384.20

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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.