Home / 12,137.65-18,226.52-9,176.09

Finding the Fourth Proportional to 12,137.65, 18,226.52 and 9,176.09

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Solution

The fourth proportional to 12,137.65, 18,226.52 and 9,176.09 is: 13,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.65 : 18,226.52 = 9,176.09 : x
  2. Step 2: Convert to fraction form
    12,137.65/18,226.52 = 9,176.09/x
  3. Step 3: Cross multiply
    12,137.65x = 18,226.52 × 9,176.09
  4. Step 4: Simplify right side
    12,137.65x = 167,248,085.30
  5. Step 5: Solve for x
    x = 167,248,085.30/12,137.65
  6. Step 6: Final answer
    x = 13,779.28

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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.