Home / 18,457.91-27,690.51-6,771.23

Finding the Fourth Proportional to 18,457.91, 27,690.51 and 6,771.23

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Solution

The fourth proportional to 18,457.91, 27,690.51 and 6,771.23 is: 10,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.91 : 27,690.51 = 6,771.23 : x
  2. Step 2: Convert to fraction form
    18,457.91/27,690.51 = 6,771.23/x
  3. Step 3: Cross multiply
    18,457.91x = 27,690.51 × 6,771.23
  4. Step 4: Simplify right side
    18,457.91x = 187,498,812.03
  5. Step 5: Solve for x
    x = 187,498,812.03/18,457.91
  6. Step 6: Final answer
    x = 10,158.18

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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.