Home / 13,031.46-19,498.41-7,747.20

Finding the Fourth Proportional to 13,031.46, 19,498.41 and 7,747.20

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Solution

The fourth proportional to 13,031.46, 19,498.41 and 7,747.20 is: 11,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.46 : 19,498.41 = 7,747.20 : x
  2. Step 2: Convert to fraction form
    13,031.46/19,498.41 = 7,747.20/x
  3. Step 3: Cross multiply
    13,031.46x = 19,498.41 × 7,747.20
  4. Step 4: Simplify right side
    13,031.46x = 151,058,081.95
  5. Step 5: Solve for x
    x = 151,058,081.95/13,031.46
  6. Step 6: Final answer
    x = 11,591.80

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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.