Home / 11,172.32-15,409.26-7,590.04

Finding the Fourth Proportional to 11,172.32, 15,409.26 and 7,590.04

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Solution

The fourth proportional to 11,172.32, 15,409.26 and 7,590.04 is: 10,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.32 : 15,409.26 = 7,590.04 : x
  2. Step 2: Convert to fraction form
    11,172.32/15,409.26 = 7,590.04/x
  3. Step 3: Cross multiply
    11,172.32x = 15,409.26 × 7,590.04
  4. Step 4: Simplify right side
    11,172.32x = 116,956,861.25
  5. Step 5: Solve for x
    x = 116,956,861.25/11,172.32
  6. Step 6: Final answer
    x = 10,468.45

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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.