Home / 18,916.66-28,370.67-5,586.80

Finding the Fourth Proportional to 18,916.66, 28,370.67 and 5,586.80

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Solution

The fourth proportional to 18,916.66, 28,370.67 and 5,586.80 is: 8,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.66 : 28,370.67 = 5,586.80 : x
  2. Step 2: Convert to fraction form
    18,916.66/28,370.67 = 5,586.80/x
  3. Step 3: Cross multiply
    18,916.66x = 28,370.67 × 5,586.80
  4. Step 4: Simplify right side
    18,916.66x = 158,501,259.16
  5. Step 5: Solve for x
    x = 158,501,259.16/18,916.66
  6. Step 6: Final answer
    x = 8,378.92

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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.