Home / 11,366.07-15,690.03-7,642.23

Finding the Fourth Proportional to 11,366.07, 15,690.03 and 7,642.23

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Solution

The fourth proportional to 11,366.07, 15,690.03 and 7,642.23 is: 10,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.07 : 15,690.03 = 7,642.23 : x
  2. Step 2: Convert to fraction form
    11,366.07/15,690.03 = 7,642.23/x
  3. Step 3: Cross multiply
    11,366.07x = 15,690.03 × 7,642.23
  4. Step 4: Simplify right side
    11,366.07x = 119,906,817.97
  5. Step 5: Solve for x
    x = 119,906,817.97/11,366.07
  6. Step 6: Final answer
    x = 10,549.54

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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.