Home / 11,620.08-16,031.52-7,643.34

Finding the Fourth Proportional to 11,620.08, 16,031.52 and 7,643.34

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Solution

The fourth proportional to 11,620.08, 16,031.52 and 7,643.34 is: 10,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.08 : 16,031.52 = 7,643.34 : x
  2. Step 2: Convert to fraction form
    11,620.08/16,031.52 = 7,643.34/x
  3. Step 3: Cross multiply
    11,620.08x = 16,031.52 × 7,643.34
  4. Step 4: Simplify right side
    11,620.08x = 122,534,358.08
  5. Step 5: Solve for x
    x = 122,534,358.08/11,620.08
  6. Step 6: Final answer
    x = 10,545.05

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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.