Home / 15,396.81-21,247.60-8,323.23

Finding the Fourth Proportional to 15,396.81, 21,247.60 and 8,323.23

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Solution

The fourth proportional to 15,396.81, 21,247.60 and 8,323.23 is: 11,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.81 : 21,247.60 = 8,323.23 : x
  2. Step 2: Convert to fraction form
    15,396.81/21,247.60 = 8,323.23/x
  3. Step 3: Cross multiply
    15,396.81x = 21,247.60 × 8,323.23
  4. Step 4: Simplify right side
    15,396.81x = 176,848,661.75
  5. Step 5: Solve for x
    x = 176,848,661.75/15,396.81
  6. Step 6: Final answer
    x = 11,486.06

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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.