Home / 13,330.10-19,995.15-12,761.30

Finding the Fourth Proportional to 13,330.10, 19,995.15 and 12,761.30

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Solution

The fourth proportional to 13,330.10, 19,995.15 and 12,761.30 is: 19,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.10 : 19,995.15 = 12,761.30 : x
  2. Step 2: Convert to fraction form
    13,330.10/19,995.15 = 12,761.30/x
  3. Step 3: Cross multiply
    13,330.10x = 19,995.15 × 12,761.30
  4. Step 4: Simplify right side
    13,330.10x = 255,164,107.70
  5. Step 5: Solve for x
    x = 255,164,107.70/13,330.10
  6. Step 6: Final answer
    x = 19,141.95

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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.