Home / 7,457.16-11,187.34-4,687.42

Finding the Fourth Proportional to 7,457.16, 11,187.34 and 4,687.42

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Solution

The fourth proportional to 7,457.16, 11,187.34 and 4,687.42 is: 7,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.16 : 11,187.34 = 4,687.42 : x
  2. Step 2: Convert to fraction form
    7,457.16/11,187.34 = 4,687.42/x
  3. Step 3: Cross multiply
    7,457.16x = 11,187.34 × 4,687.42
  4. Step 4: Simplify right side
    7,457.16x = 52,439,709.86
  5. Step 5: Solve for x
    x = 52,439,709.86/7,457.16
  6. Step 6: Final answer
    x = 7,032.13

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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.