Home / 18,457.86-25,469.54-10,500.21

Finding the Fourth Proportional to 18,457.86, 25,469.54 and 10,500.21

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Solution

The fourth proportional to 18,457.86, 25,469.54 and 10,500.21 is: 14,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.86 : 25,469.54 = 10,500.21 : x
  2. Step 2: Convert to fraction form
    18,457.86/25,469.54 = 10,500.21/x
  3. Step 3: Cross multiply
    18,457.86x = 25,469.54 × 10,500.21
  4. Step 4: Simplify right side
    18,457.86x = 267,435,466.10
  5. Step 5: Solve for x
    x = 267,435,466.10/18,457.86
  6. Step 6: Final answer
    x = 14,488.97

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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.