Home / 13,533.10-18,673.38-7,564.81

Finding the Fourth Proportional to 13,533.10, 18,673.38 and 7,564.81

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Solution

The fourth proportional to 13,533.10, 18,673.38 and 7,564.81 is: 10,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.10 : 18,673.38 = 7,564.81 : x
  2. Step 2: Convert to fraction form
    13,533.10/18,673.38 = 7,564.81/x
  3. Step 3: Cross multiply
    13,533.10x = 18,673.38 × 7,564.81
  4. Step 4: Simplify right side
    13,533.10x = 141,260,571.76
  5. Step 5: Solve for x
    x = 141,260,571.76/13,533.10
  6. Step 6: Final answer
    x = 10,438.15

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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.