Home / 11,290.49-15,581.43-6,814.16

Finding the Fourth Proportional to 11,290.49, 15,581.43 and 6,814.16

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Solution

The fourth proportional to 11,290.49, 15,581.43 and 6,814.16 is: 9,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.49 : 15,581.43 = 6,814.16 : x
  2. Step 2: Convert to fraction form
    11,290.49/15,581.43 = 6,814.16/x
  3. Step 3: Cross multiply
    11,290.49x = 15,581.43 × 6,814.16
  4. Step 4: Simplify right side
    11,290.49x = 106,174,396.00
  5. Step 5: Solve for x
    x = 106,174,396.00/11,290.49
  6. Step 6: Final answer
    x = 9,403.88

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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.