Home / 12,457.24-18,688.84-4,249.24

Finding the Fourth Proportional to 12,457.24, 18,688.84 and 4,249.24

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Solution

The fourth proportional to 12,457.24, 18,688.84 and 4,249.24 is: 6,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.24 : 18,688.84 = 4,249.24 : x
  2. Step 2: Convert to fraction form
    12,457.24/18,688.84 = 4,249.24/x
  3. Step 3: Cross multiply
    12,457.24x = 18,688.84 × 4,249.24
  4. Step 4: Simplify right side
    12,457.24x = 79,413,366.48
  5. Step 5: Solve for x
    x = 79,413,366.48/12,457.24
  6. Step 6: Final answer
    x = 6,374.88

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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.