Home / 15,435.75-21,312.33-9,469.34

Finding the Fourth Proportional to 15,435.75, 21,312.33 and 9,469.34

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Solution

The fourth proportional to 15,435.75, 21,312.33 and 9,469.34 is: 13,074.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.75 : 21,312.33 = 9,469.34 : x
  2. Step 2: Convert to fraction form
    15,435.75/21,312.33 = 9,469.34/x
  3. Step 3: Cross multiply
    15,435.75x = 21,312.33 × 9,469.34
  4. Step 4: Simplify right side
    15,435.75x = 201,813,698.96
  5. Step 5: Solve for x
    x = 201,813,698.96/15,435.75
  6. Step 6: Final answer
    x = 13,074.43

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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.