Home / 13,119.76-19,679.57-3,259.04

Finding the Fourth Proportional to 13,119.76, 19,679.57 and 3,259.04

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Solution

The fourth proportional to 13,119.76, 19,679.57 and 3,259.04 is: 4,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.76 : 19,679.57 = 3,259.04 : x
  2. Step 2: Convert to fraction form
    13,119.76/19,679.57 = 3,259.04/x
  3. Step 3: Cross multiply
    13,119.76x = 19,679.57 × 3,259.04
  4. Step 4: Simplify right side
    13,119.76x = 64,136,505.81
  5. Step 5: Solve for x
    x = 64,136,505.81/13,119.76
  6. Step 6: Final answer
    x = 4,888.54

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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.