Home / 10,585.55-15,880.39-3,189.65

Finding the Fourth Proportional to 10,585.55, 15,880.39 and 3,189.65

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Solution

The fourth proportional to 10,585.55, 15,880.39 and 3,189.65 is: 4,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,585.55 : 15,880.39 = 3,189.65 : x
  2. Step 2: Convert to fraction form
    10,585.55/15,880.39 = 3,189.65/x
  3. Step 3: Cross multiply
    10,585.55x = 15,880.39 × 3,189.65
  4. Step 4: Simplify right side
    10,585.55x = 50,652,798.59
  5. Step 5: Solve for x
    x = 50,652,798.59/10,585.55
  6. Step 6: Final answer
    x = 4,785.09

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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.