Home / 13,226.52-19,918.98-12,045.54

Finding the Fourth Proportional to 13,226.52, 19,918.98 and 12,045.54

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Solution

The fourth proportional to 13,226.52, 19,918.98 and 12,045.54 is: 18,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.52 : 19,918.98 = 12,045.54 : x
  2. Step 2: Convert to fraction form
    13,226.52/19,918.98 = 12,045.54/x
  3. Step 3: Cross multiply
    13,226.52x = 19,918.98 × 12,045.54
  4. Step 4: Simplify right side
    13,226.52x = 239,934,870.35
  5. Step 5: Solve for x
    x = 239,934,870.35/13,226.52
  6. Step 6: Final answer
    x = 18,140.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.