Home / 10,861.71-16,289.19-4,621.65

Finding the Fourth Proportional to 10,861.71, 16,289.19 and 4,621.65

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Solution

The fourth proportional to 10,861.71, 16,289.19 and 4,621.65 is: 6,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.71 : 16,289.19 = 4,621.65 : x
  2. Step 2: Convert to fraction form
    10,861.71/16,289.19 = 4,621.65/x
  3. Step 3: Cross multiply
    10,861.71x = 16,289.19 × 4,621.65
  4. Step 4: Simplify right side
    10,861.71x = 75,282,934.96
  5. Step 5: Solve for x
    x = 75,282,934.96/10,861.71
  6. Step 6: Final answer
    x = 6,931.04

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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.