Home / 13,457.76-20,181.24-5,561.49

Finding the Fourth Proportional to 13,457.76, 20,181.24 and 5,561.49

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Solution

The fourth proportional to 13,457.76, 20,181.24 and 5,561.49 is: 8,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.76 : 20,181.24 = 5,561.49 : x
  2. Step 2: Convert to fraction form
    13,457.76/20,181.24 = 5,561.49/x
  3. Step 3: Cross multiply
    13,457.76x = 20,181.24 × 5,561.49
  4. Step 4: Simplify right side
    13,457.76x = 112,237,764.45
  5. Step 5: Solve for x
    x = 112,237,764.45/13,457.76
  6. Step 6: Final answer
    x = 8,340.00

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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.