Home / 12,457.89-17,191.68-6,792.87

Finding the Fourth Proportional to 12,457.89, 17,191.68 and 6,792.87

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Solution

The fourth proportional to 12,457.89, 17,191.68 and 6,792.87 is: 9,374.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.89 : 17,191.68 = 6,792.87 : x
  2. Step 2: Convert to fraction form
    12,457.89/17,191.68 = 6,792.87/x
  3. Step 3: Cross multiply
    12,457.89x = 17,191.68 × 6,792.87
  4. Step 4: Simplify right side
    12,457.89x = 116,780,847.32
  5. Step 5: Solve for x
    x = 116,780,847.32/12,457.89
  6. Step 6: Final answer
    x = 9,374.05

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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.