Home / 13,119.60-19,672.09-5,319.30

Finding the Fourth Proportional to 13,119.60, 19,672.09 and 5,319.30

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Solution

The fourth proportional to 13,119.60, 19,672.09 and 5,319.30 is: 7,975.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.60 : 19,672.09 = 5,319.30 : x
  2. Step 2: Convert to fraction form
    13,119.60/19,672.09 = 5,319.30/x
  3. Step 3: Cross multiply
    13,119.60x = 19,672.09 × 5,319.30
  4. Step 4: Simplify right side
    13,119.60x = 104,641,748.34
  5. Step 5: Solve for x
    x = 104,641,748.34/13,119.60
  6. Step 6: Final answer
    x = 7,975.99

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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.