Home / 18,811.65-28,217.18-4,580.26

Finding the Fourth Proportional to 18,811.65, 28,217.18 and 4,580.26

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Solution

The fourth proportional to 18,811.65, 28,217.18 and 4,580.26 is: 6,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.65 : 28,217.18 = 4,580.26 : x
  2. Step 2: Convert to fraction form
    18,811.65/28,217.18 = 4,580.26/x
  3. Step 3: Cross multiply
    18,811.65x = 28,217.18 × 4,580.26
  4. Step 4: Simplify right side
    18,811.65x = 129,241,908.87
  5. Step 5: Solve for x
    x = 129,241,908.87/18,811.65
  6. Step 6: Final answer
    x = 6,870.31

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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.