Home / 15,567.87-21,485.46-8,669.73

Finding the Fourth Proportional to 15,567.87, 21,485.46 and 8,669.73

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Solution

The fourth proportional to 15,567.87, 21,485.46 and 8,669.73 is: 11,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,567.87 : 21,485.46 = 8,669.73 : x
  2. Step 2: Convert to fraction form
    15,567.87/21,485.46 = 8,669.73/x
  3. Step 3: Cross multiply
    15,567.87x = 21,485.46 × 8,669.73
  4. Step 4: Simplify right side
    15,567.87x = 186,273,137.13
  5. Step 5: Solve for x
    x = 186,273,137.13/15,567.87
  6. Step 6: Final answer
    x = 11,965.23

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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.