Home / 12,974.96-19,460.80-3,615.68

Finding the Fourth Proportional to 12,974.96, 19,460.80 and 3,615.68

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Solution

The fourth proportional to 12,974.96, 19,460.80 and 3,615.68 is: 5,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.96 : 19,460.80 = 3,615.68 : x
  2. Step 2: Convert to fraction form
    12,974.96/19,460.80 = 3,615.68/x
  3. Step 3: Cross multiply
    12,974.96x = 19,460.80 × 3,615.68
  4. Step 4: Simplify right side
    12,974.96x = 70,364,025.34
  5. Step 5: Solve for x
    x = 70,364,025.34/12,974.96
  6. Step 6: Final answer
    x = 5,423.06

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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.