Home / 10,279.08-15,405.48-8,892.36

Finding the Fourth Proportional to 10,279.08, 15,405.48 and 8,892.36

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Solution

The fourth proportional to 10,279.08, 15,405.48 and 8,892.36 is: 13,327.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.08 : 15,405.48 = 8,892.36 : x
  2. Step 2: Convert to fraction form
    10,279.08/15,405.48 = 8,892.36/x
  3. Step 3: Cross multiply
    10,279.08x = 15,405.48 × 8,892.36
  4. Step 4: Simplify right side
    10,279.08x = 136,991,074.13
  5. Step 5: Solve for x
    x = 136,991,074.13/10,279.08
  6. Step 6: Final answer
    x = 13,327.17

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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.