Home / 12,457.55-18,683.11-3,690.41

Finding the Fourth Proportional to 12,457.55, 18,683.11 and 3,690.41

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Solution

The fourth proportional to 12,457.55, 18,683.11 and 3,690.41 is: 5,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.55 : 18,683.11 = 3,690.41 : x
  2. Step 2: Convert to fraction form
    12,457.55/18,683.11 = 3,690.41/x
  3. Step 3: Cross multiply
    12,457.55x = 18,683.11 × 3,690.41
  4. Step 4: Simplify right side
    12,457.55x = 68,948,331.51
  5. Step 5: Solve for x
    x = 68,948,331.51/12,457.55
  6. Step 6: Final answer
    x = 5,534.66

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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.