Home / 15,396.48-21,246.48-9,438.24

Finding the Fourth Proportional to 15,396.48, 21,246.48 and 9,438.24

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Solution

The fourth proportional to 15,396.48, 21,246.48 and 9,438.24 is: 13,024.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.48 : 21,246.48 = 9,438.24 : x
  2. Step 2: Convert to fraction form
    15,396.48/21,246.48 = 9,438.24/x
  3. Step 3: Cross multiply
    15,396.48x = 21,246.48 × 9,438.24
  4. Step 4: Simplify right side
    15,396.48x = 200,529,377.40
  5. Step 5: Solve for x
    x = 200,529,377.40/15,396.48
  6. Step 6: Final answer
    x = 13,024.37

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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.