Home / 15,396.93-21,247.81-8,323.36

Finding the Fourth Proportional to 15,396.93, 21,247.81 and 8,323.36

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Solution

The fourth proportional to 15,396.93, 21,247.81 and 8,323.36 is: 11,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.93 : 21,247.81 = 8,323.36 : x
  2. Step 2: Convert to fraction form
    15,396.93/21,247.81 = 8,323.36/x
  3. Step 3: Cross multiply
    15,396.93x = 21,247.81 × 8,323.36
  4. Step 4: Simplify right side
    15,396.93x = 176,853,097.91
  5. Step 5: Solve for x
    x = 176,853,097.91/15,396.93
  6. Step 6: Final answer
    x = 11,486.26

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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.