Home / 8,986.08-13,478.66-3,439

Finding the Fourth Proportional to 8,986.08, 13,478.66 and 3,439

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Solution

The fourth proportional to 8,986.08, 13,478.66 and 3,439 is: 5,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.08 : 13,478.66 = 3,439 : x
  2. Step 2: Convert to fraction form
    8,986.08/13,478.66 = 3,439/x
  3. Step 3: Cross multiply
    8,986.08x = 13,478.66 × 3,439
  4. Step 4: Simplify right side
    8,986.08x = 46,353,111.74
  5. Step 5: Solve for x
    x = 46,353,111.74/8,986.08
  6. Step 6: Final answer
    x = 5,158.32

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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.