Home / 12,976.67-19,477.31-8,031.35

Finding the Fourth Proportional to 12,976.67, 19,477.31 and 8,031.35

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Solution

The fourth proportional to 12,976.67, 19,477.31 and 8,031.35 is: 12,054.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.67 : 19,477.31 = 8,031.35 : x
  2. Step 2: Convert to fraction form
    12,976.67/19,477.31 = 8,031.35/x
  3. Step 3: Cross multiply
    12,976.67x = 19,477.31 × 8,031.35
  4. Step 4: Simplify right side
    12,976.67x = 156,428,956.13
  5. Step 5: Solve for x
    x = 156,428,956.13/12,976.67
  6. Step 6: Final answer
    x = 12,054.63

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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.