Home / 15,673.15-21,628.20-8,599.42

Finding the Fourth Proportional to 15,673.15, 21,628.20 and 8,599.42

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Solution

The fourth proportional to 15,673.15, 21,628.20 and 8,599.42 is: 11,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,673.15 : 21,628.20 = 8,599.42 : x
  2. Step 2: Convert to fraction form
    15,673.15/21,628.20 = 8,599.42/x
  3. Step 3: Cross multiply
    15,673.15x = 21,628.20 × 8,599.42
  4. Step 4: Simplify right side
    15,673.15x = 185,989,975.64
  5. Step 5: Solve for x
    x = 185,989,975.64/15,673.15
  6. Step 6: Final answer
    x = 11,866.79

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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.