Home / 13,247.60-19,864.20-5,457.20

Finding the Fourth Proportional to 13,247.60, 19,864.20 and 5,457.20

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Solution

The fourth proportional to 13,247.60, 19,864.20 and 5,457.20 is: 8,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.60 : 19,864.20 = 5,457.20 : x
  2. Step 2: Convert to fraction form
    13,247.60/19,864.20 = 5,457.20/x
  3. Step 3: Cross multiply
    13,247.60x = 19,864.20 × 5,457.20
  4. Step 4: Simplify right side
    13,247.60x = 108,402,912.24
  5. Step 5: Solve for x
    x = 108,402,912.24/13,247.60
  6. Step 6: Final answer
    x = 8,182.83

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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.