Home / 13,219.59-19,823.12-7,674.63

Finding the Fourth Proportional to 13,219.59, 19,823.12 and 7,674.63

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Solution

The fourth proportional to 13,219.59, 19,823.12 and 7,674.63 is: 11,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.59 : 19,823.12 = 7,674.63 : x
  2. Step 2: Convert to fraction form
    13,219.59/19,823.12 = 7,674.63/x
  3. Step 3: Cross multiply
    13,219.59x = 19,823.12 × 7,674.63
  4. Step 4: Simplify right side
    13,219.59x = 152,135,073.07
  5. Step 5: Solve for x
    x = 152,135,073.07/13,219.59
  6. Step 6: Final answer
    x = 11,508.30

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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.