Home / 13,031.38-19,548.96-7,483.78

Finding the Fourth Proportional to 13,031.38, 19,548.96 and 7,483.78

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Solution

The fourth proportional to 13,031.38, 19,548.96 and 7,483.78 is: 11,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.38 : 19,548.96 = 7,483.78 : x
  2. Step 2: Convert to fraction form
    13,031.38/19,548.96 = 7,483.78/x
  3. Step 3: Cross multiply
    13,031.38x = 19,548.96 × 7,483.78
  4. Step 4: Simplify right side
    13,031.38x = 146,300,115.87
  5. Step 5: Solve for x
    x = 146,300,115.87/13,031.38
  6. Step 6: Final answer
    x = 11,226.76

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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.