Home / 12,457.83-18,683.56-3,690.70

Finding the Fourth Proportional to 12,457.83, 18,683.56 and 3,690.70

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Solution

The fourth proportional to 12,457.83, 18,683.56 and 3,690.70 is: 5,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.83 : 18,683.56 = 3,690.70 : x
  2. Step 2: Convert to fraction form
    12,457.83/18,683.56 = 3,690.70/x
  3. Step 3: Cross multiply
    12,457.83x = 18,683.56 × 3,690.70
  4. Step 4: Simplify right side
    12,457.83x = 68,955,372.80
  5. Step 5: Solve for x
    x = 68,955,372.80/12,457.83
  6. Step 6: Final answer
    x = 5,535.10

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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.