Home / 15,577.25-21,496.75-8,503.79

Finding the Fourth Proportional to 15,577.25, 21,496.75 and 8,503.79

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Solution

The fourth proportional to 15,577.25, 21,496.75 and 8,503.79 is: 11,735.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,577.25 : 21,496.75 = 8,503.79 : x
  2. Step 2: Convert to fraction form
    15,577.25/21,496.75 = 8,503.79/x
  3. Step 3: Cross multiply
    15,577.25x = 21,496.75 × 8,503.79
  4. Step 4: Simplify right side
    15,577.25x = 182,803,880.16
  5. Step 5: Solve for x
    x = 182,803,880.16/15,577.25
  6. Step 6: Final answer
    x = 11,735.31

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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.