Home / 13,677.04-20,457.24-8,399.08

Finding the Fourth Proportional to 13,677.04, 20,457.24 and 8,399.08

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Solution

The fourth proportional to 13,677.04, 20,457.24 and 8,399.08 is: 12,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.04 : 20,457.24 = 8,399.08 : x
  2. Step 2: Convert to fraction form
    13,677.04/20,457.24 = 8,399.08/x
  3. Step 3: Cross multiply
    13,677.04x = 20,457.24 × 8,399.08
  4. Step 4: Simplify right side
    13,677.04x = 171,821,995.34
  5. Step 5: Solve for x
    x = 171,821,995.34/13,677.04
  6. Step 6: Final answer
    x = 12,562.81

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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.