Home / 14,880.20-20,534.52-8,165.72

Finding the Fourth Proportional to 14,880.20, 20,534.52 and 8,165.72

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Solution

The fourth proportional to 14,880.20, 20,534.52 and 8,165.72 is: 11,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.20 : 20,534.52 = 8,165.72 : x
  2. Step 2: Convert to fraction form
    14,880.20/20,534.52 = 8,165.72/x
  3. Step 3: Cross multiply
    14,880.20x = 20,534.52 × 8,165.72
  4. Step 4: Simplify right side
    14,880.20x = 167,679,140.65
  5. Step 5: Solve for x
    x = 167,679,140.65/14,880.20
  6. Step 6: Final answer
    x = 11,268.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.