Home / 12,921.98-19,345.32-9,604.92

Finding the Fourth Proportional to 12,921.98, 19,345.32 and 9,604.92

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Solution

The fourth proportional to 12,921.98, 19,345.32 and 9,604.92 is: 14,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.98 : 19,345.32 = 9,604.92 : x
  2. Step 2: Convert to fraction form
    12,921.98/19,345.32 = 9,604.92/x
  3. Step 3: Cross multiply
    12,921.98x = 19,345.32 × 9,604.92
  4. Step 4: Simplify right side
    12,921.98x = 185,810,250.97
  5. Step 5: Solve for x
    x = 185,810,250.97/12,921.98
  6. Step 6: Final answer
    x = 14,379.40

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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.