Home / 12,533.76-18,802.80-5,146.56

Finding the Fourth Proportional to 12,533.76, 18,802.80 and 5,146.56

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Solution

The fourth proportional to 12,533.76, 18,802.80 and 5,146.56 is: 7,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,533.76 : 18,802.80 = 5,146.56 : x
  2. Step 2: Convert to fraction form
    12,533.76/18,802.80 = 5,146.56/x
  3. Step 3: Cross multiply
    12,533.76x = 18,802.80 × 5,146.56
  4. Step 4: Simplify right side
    12,533.76x = 96,769,738.37
  5. Step 5: Solve for x
    x = 96,769,738.37/12,533.76
  6. Step 6: Final answer
    x = 7,720.73

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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.