Home / 13,217.81-18,242.69-7,914.33

Finding the Fourth Proportional to 13,217.81, 18,242.69 and 7,914.33

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Solution

The fourth proportional to 13,217.81, 18,242.69 and 7,914.33 is: 10,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.81 : 18,242.69 = 7,914.33 : x
  2. Step 2: Convert to fraction form
    13,217.81/18,242.69 = 7,914.33/x
  3. Step 3: Cross multiply
    13,217.81x = 18,242.69 × 7,914.33
  4. Step 4: Simplify right side
    13,217.81x = 144,378,629.18
  5. Step 5: Solve for x
    x = 144,378,629.18/13,217.81
  6. Step 6: Final answer
    x = 10,923.04

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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.