Home / 18,457.08-25,461.91-12,080.86

Finding the Fourth Proportional to 18,457.08, 25,461.91 and 12,080.86

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Solution

The fourth proportional to 18,457.08, 25,461.91 and 12,080.86 is: 16,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.08 : 25,461.91 = 12,080.86 : x
  2. Step 2: Convert to fraction form
    18,457.08/25,461.91 = 12,080.86/x
  3. Step 3: Cross multiply
    18,457.08x = 25,461.91 × 12,080.86
  4. Step 4: Simplify right side
    18,457.08x = 307,601,709.64
  5. Step 5: Solve for x
    x = 307,601,709.64/18,457.08
  6. Step 6: Final answer
    x = 16,665.79

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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.