Home / 12,457.34-17,190.48-6,791.80

Finding the Fourth Proportional to 12,457.34, 17,190.48 and 6,791.80

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Solution

The fourth proportional to 12,457.34, 17,190.48 and 6,791.80 is: 9,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.34 : 17,190.48 = 6,791.80 : x
  2. Step 2: Convert to fraction form
    12,457.34/17,190.48 = 6,791.80/x
  3. Step 3: Cross multiply
    12,457.34x = 17,190.48 × 6,791.80
  4. Step 4: Simplify right side
    12,457.34x = 116,754,302.06
  5. Step 5: Solve for x
    x = 116,754,302.06/12,457.34
  6. Step 6: Final answer
    x = 9,372.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.