Home / 13,433.70-18,533.20-7,767.41

Finding the Fourth Proportional to 13,433.70, 18,533.20 and 7,767.41

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Solution

The fourth proportional to 13,433.70, 18,533.20 and 7,767.41 is: 10,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.70 : 18,533.20 = 7,767.41 : x
  2. Step 2: Convert to fraction form
    13,433.70/18,533.20 = 7,767.41/x
  3. Step 3: Cross multiply
    13,433.70x = 18,533.20 × 7,767.41
  4. Step 4: Simplify right side
    13,433.70x = 143,954,963.01
  5. Step 5: Solve for x
    x = 143,954,963.01/13,433.70
  6. Step 6: Final answer
    x = 10,715.96

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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.