Home / 13,010.12-19,519.50-8,644.76

Finding the Fourth Proportional to 13,010.12, 19,519.50 and 8,644.76

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Solution

The fourth proportional to 13,010.12, 19,519.50 and 8,644.76 is: 12,970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.12 : 19,519.50 = 8,644.76 : x
  2. Step 2: Convert to fraction form
    13,010.12/19,519.50 = 8,644.76/x
  3. Step 3: Cross multiply
    13,010.12x = 19,519.50 × 8,644.76
  4. Step 4: Simplify right side
    13,010.12x = 168,741,392.82
  5. Step 5: Solve for x
    x = 168,741,392.82/13,010.12
  6. Step 6: Final answer
    x = 12,970.01

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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.