Home / 13,330.20-19,995.30-12,682.20

Finding the Fourth Proportional to 13,330.20, 19,995.30 and 12,682.20

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Solution

The fourth proportional to 13,330.20, 19,995.30 and 12,682.20 is: 19,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.20 : 19,995.30 = 12,682.20 : x
  2. Step 2: Convert to fraction form
    13,330.20/19,995.30 = 12,682.20/x
  3. Step 3: Cross multiply
    13,330.20x = 19,995.30 × 12,682.20
  4. Step 4: Simplify right side
    13,330.20x = 253,584,393.66
  5. Step 5: Solve for x
    x = 253,584,393.66/13,330.20
  6. Step 6: Final answer
    x = 19,023.30

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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.