Home / 10,992.34-15,172.19-6,279.36

Finding the Fourth Proportional to 10,992.34, 15,172.19 and 6,279.36

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Solution

The fourth proportional to 10,992.34, 15,172.19 and 6,279.36 is: 8,667.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.34 : 15,172.19 = 6,279.36 : x
  2. Step 2: Convert to fraction form
    10,992.34/15,172.19 = 6,279.36/x
  3. Step 3: Cross multiply
    10,992.34x = 15,172.19 × 6,279.36
  4. Step 4: Simplify right side
    10,992.34x = 95,271,643.00
  5. Step 5: Solve for x
    x = 95,271,643.00/10,992.34
  6. Step 6: Final answer
    x = 8,667.09

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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.