Home / 13,031.11-19,513.30-7,181.23

Finding the Fourth Proportional to 13,031.11, 19,513.30 and 7,181.23

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Solution

The fourth proportional to 13,031.11, 19,513.30 and 7,181.23 is: 10,753.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.11 : 19,513.30 = 7,181.23 : x
  2. Step 2: Convert to fraction form
    13,031.11/19,513.30 = 7,181.23/x
  3. Step 3: Cross multiply
    13,031.11x = 19,513.30 × 7,181.23
  4. Step 4: Simplify right side
    13,031.11x = 140,129,495.36
  5. Step 5: Solve for x
    x = 140,129,495.36/13,031.11
  6. Step 6: Final answer
    x = 10,753.46

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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.