Home / 13,182.10-19,748.30-6,510.78

Finding the Fourth Proportional to 13,182.10, 19,748.30 and 6,510.78

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Solution

The fourth proportional to 13,182.10, 19,748.30 and 6,510.78 is: 9,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.10 : 19,748.30 = 6,510.78 : x
  2. Step 2: Convert to fraction form
    13,182.10/19,748.30 = 6,510.78/x
  3. Step 3: Cross multiply
    13,182.10x = 19,748.30 × 6,510.78
  4. Step 4: Simplify right side
    13,182.10x = 128,576,910.73
  5. Step 5: Solve for x
    x = 128,576,910.73/13,182.10
  6. Step 6: Final answer
    x = 9,753.90

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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.