Home / 18,849.65-28,276.70-8,315.19

Finding the Fourth Proportional to 18,849.65, 28,276.70 and 8,315.19

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Solution

The fourth proportional to 18,849.65, 28,276.70 and 8,315.19 is: 12,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.65 : 28,276.70 = 8,315.19 : x
  2. Step 2: Convert to fraction form
    18,849.65/28,276.70 = 8,315.19/x
  3. Step 3: Cross multiply
    18,849.65x = 28,276.70 × 8,315.19
  4. Step 4: Simplify right side
    18,849.65x = 235,126,091.50
  5. Step 5: Solve for x
    x = 235,126,091.50/18,849.65
  6. Step 6: Final answer
    x = 12,473.77

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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.