Home / 13,119.56-19,679.07-3,258.81

Finding the Fourth Proportional to 13,119.56, 19,679.07 and 3,258.81

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Solution

The fourth proportional to 13,119.56, 19,679.07 and 3,258.81 is: 4,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.56 : 19,679.07 = 3,258.81 : x
  2. Step 2: Convert to fraction form
    13,119.56/19,679.07 = 3,258.81/x
  3. Step 3: Cross multiply
    13,119.56x = 19,679.07 × 3,258.81
  4. Step 4: Simplify right side
    13,119.56x = 64,130,350.11
  5. Step 5: Solve for x
    x = 64,130,350.11/13,119.56
  6. Step 6: Final answer
    x = 4,888.15

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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.