Home / 8,457.31-12,683.18-2,910.53

Finding the Fourth Proportional to 8,457.31, 12,683.18 and 2,910.53

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Solution

The fourth proportional to 8,457.31, 12,683.18 and 2,910.53 is: 4,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.31 : 12,683.18 = 2,910.53 : x
  2. Step 2: Convert to fraction form
    8,457.31/12,683.18 = 2,910.53/x
  3. Step 3: Cross multiply
    8,457.31x = 12,683.18 × 2,910.53
  4. Step 4: Simplify right side
    8,457.31x = 36,914,814.87
  5. Step 5: Solve for x
    x = 36,914,814.87/8,457.31
  6. Step 6: Final answer
    x = 4,364.84

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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.