Home / 8,457.57-12,688.29-2,910.99

Finding the Fourth Proportional to 8,457.57, 12,688.29 and 2,910.99

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Solution

The fourth proportional to 8,457.57, 12,688.29 and 2,910.99 is: 4,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.57 : 12,688.29 = 2,910.99 : x
  2. Step 2: Convert to fraction form
    8,457.57/12,688.29 = 2,910.99/x
  3. Step 3: Cross multiply
    8,457.57x = 12,688.29 × 2,910.99
  4. Step 4: Simplify right side
    8,457.57x = 36,935,485.31
  5. Step 5: Solve for x
    x = 36,935,485.31/8,457.57
  6. Step 6: Final answer
    x = 4,367.15

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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.