Home / 15,177.84-20,945.52-8,890.26

Finding the Fourth Proportional to 15,177.84, 20,945.52 and 8,890.26

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Solution

The fourth proportional to 15,177.84, 20,945.52 and 8,890.26 is: 12,268.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.84 : 20,945.52 = 8,890.26 : x
  2. Step 2: Convert to fraction form
    15,177.84/20,945.52 = 8,890.26/x
  3. Step 3: Cross multiply
    15,177.84x = 20,945.52 × 8,890.26
  4. Step 4: Simplify right side
    15,177.84x = 186,211,118.64
  5. Step 5: Solve for x
    x = 186,211,118.64/15,177.84
  6. Step 6: Final answer
    x = 12,268.62

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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.