Home / 13,861.83-19,129.26-7,574.21

Finding the Fourth Proportional to 13,861.83, 19,129.26 and 7,574.21

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Solution

The fourth proportional to 13,861.83, 19,129.26 and 7,574.21 is: 10,452.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.83 : 19,129.26 = 7,574.21 : x
  2. Step 2: Convert to fraction form
    13,861.83/19,129.26 = 7,574.21/x
  3. Step 3: Cross multiply
    13,861.83x = 19,129.26 × 7,574.21
  4. Step 4: Simplify right side
    13,861.83x = 144,889,036.88
  5. Step 5: Solve for x
    x = 144,889,036.88/13,861.83
  6. Step 6: Final answer
    x = 10,452.37

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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.