Home / 15,698.75-21,654.66-9,321.01

Finding the Fourth Proportional to 15,698.75, 21,654.66 and 9,321.01

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Solution

The fourth proportional to 15,698.75, 21,654.66 and 9,321.01 is: 12,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.75 : 21,654.66 = 9,321.01 : x
  2. Step 2: Convert to fraction form
    15,698.75/21,654.66 = 9,321.01/x
  3. Step 3: Cross multiply
    15,698.75x = 21,654.66 × 9,321.01
  4. Step 4: Simplify right side
    15,698.75x = 201,843,302.41
  5. Step 5: Solve for x
    x = 201,843,302.41/15,698.75
  6. Step 6: Final answer
    x = 12,857.28

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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.