Home / 12,457.20-17,189.46-8,477.04

Finding the Fourth Proportional to 12,457.20, 17,189.46 and 8,477.04

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Solution

The fourth proportional to 12,457.20, 17,189.46 and 8,477.04 is: 11,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.20 : 17,189.46 = 8,477.04 : x
  2. Step 2: Convert to fraction form
    12,457.20/17,189.46 = 8,477.04/x
  3. Step 3: Cross multiply
    12,457.20x = 17,189.46 × 8,477.04
  4. Step 4: Simplify right side
    12,457.20x = 145,715,740.00
  5. Step 5: Solve for x
    x = 145,715,740.00/12,457.20
  6. Step 6: Final answer
    x = 11,697.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.