Home / 11,166.69-15,392.07-7,580.55

Finding the Fourth Proportional to 11,166.69, 15,392.07 and 7,580.55

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Solution

The fourth proportional to 11,166.69, 15,392.07 and 7,580.55 is: 10,448.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.69 : 15,392.07 = 7,580.55 : x
  2. Step 2: Convert to fraction form
    11,166.69/15,392.07 = 7,580.55/x
  3. Step 3: Cross multiply
    11,166.69x = 15,392.07 × 7,580.55
  4. Step 4: Simplify right side
    11,166.69x = 116,680,356.24
  5. Step 5: Solve for x
    x = 116,680,356.24/11,166.69
  6. Step 6: Final answer
    x = 10,448.97

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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.