Home / 12,672.13-19,011.50-4,774.73

Finding the Fourth Proportional to 12,672.13, 19,011.50 and 4,774.73

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Solution

The fourth proportional to 12,672.13, 19,011.50 and 4,774.73 is: 7,163.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.13 : 19,011.50 = 4,774.73 : x
  2. Step 2: Convert to fraction form
    12,672.13/19,011.50 = 4,774.73/x
  3. Step 3: Cross multiply
    12,672.13x = 19,011.50 × 4,774.73
  4. Step 4: Simplify right side
    12,672.13x = 90,774,779.40
  5. Step 5: Solve for x
    x = 90,774,779.40/12,672.13
  6. Step 6: Final answer
    x = 7,163.34

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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.