Home / 13,457.84-20,152.20-8,247.92

Finding the Fourth Proportional to 13,457.84, 20,152.20 and 8,247.92

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Solution

The fourth proportional to 13,457.84, 20,152.20 and 8,247.92 is: 12,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.84 : 20,152.20 = 8,247.92 : x
  2. Step 2: Convert to fraction form
    13,457.84/20,152.20 = 8,247.92/x
  3. Step 3: Cross multiply
    13,457.84x = 20,152.20 × 8,247.92
  4. Step 4: Simplify right side
    13,457.84x = 166,213,733.42
  5. Step 5: Solve for x
    x = 166,213,733.42/13,457.84
  6. Step 6: Final answer
    x = 12,350.70

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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.