Home / 15,506.36-21,399.34-8,883.64

Finding the Fourth Proportional to 15,506.36, 21,399.34 and 8,883.64

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Solution

The fourth proportional to 15,506.36, 21,399.34 and 8,883.64 is: 12,259.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.36 : 21,399.34 = 8,883.64 : x
  2. Step 2: Convert to fraction form
    15,506.36/21,399.34 = 8,883.64/x
  3. Step 3: Cross multiply
    15,506.36x = 21,399.34 × 8,883.64
  4. Step 4: Simplify right side
    15,506.36x = 190,104,032.80
  5. Step 5: Solve for x
    x = 190,104,032.80/15,506.36
  6. Step 6: Final answer
    x = 12,259.75

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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.