Home / 14,687.16-20,267.08-8,720.29

Finding the Fourth Proportional to 14,687.16, 20,267.08 and 8,720.29

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Solution

The fourth proportional to 14,687.16, 20,267.08 and 8,720.29 is: 12,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.16 : 20,267.08 = 8,720.29 : x
  2. Step 2: Convert to fraction form
    14,687.16/20,267.08 = 8,720.29/x
  3. Step 3: Cross multiply
    14,687.16x = 20,267.08 × 8,720.29
  4. Step 4: Simplify right side
    14,687.16x = 176,734,815.05
  5. Step 5: Solve for x
    x = 176,734,815.05/14,687.16
  6. Step 6: Final answer
    x = 12,033.29

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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.