Home / 12,972.96-19,457.80-3,613.68

Finding the Fourth Proportional to 12,972.96, 19,457.80 and 3,613.68

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Solution

The fourth proportional to 12,972.96, 19,457.80 and 3,613.68 is: 5,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.96 : 19,457.80 = 3,613.68 : x
  2. Step 2: Convert to fraction form
    12,972.96/19,457.80 = 3,613.68/x
  3. Step 3: Cross multiply
    12,972.96x = 19,457.80 × 3,613.68
  4. Step 4: Simplify right side
    12,972.96x = 70,314,262.70
  5. Step 5: Solve for x
    x = 70,314,262.70/12,972.96
  6. Step 6: Final answer
    x = 5,420.06

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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.