Home / 11,407.76-17,120.70-5,168.23

Finding the Fourth Proportional to 11,407.76, 17,120.70 and 5,168.23

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Solution

The fourth proportional to 11,407.76, 17,120.70 and 5,168.23 is: 7,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.76 : 17,120.70 = 5,168.23 : x
  2. Step 2: Convert to fraction form
    11,407.76/17,120.70 = 5,168.23/x
  3. Step 3: Cross multiply
    11,407.76x = 17,120.70 × 5,168.23
  4. Step 4: Simplify right side
    11,407.76x = 88,483,715.36
  5. Step 5: Solve for x
    x = 88,483,715.36/11,407.76
  6. Step 6: Final answer
    x = 7,756.45

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1.5x scale

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.