Home / 18,895.50-28,342.04-7,799.31

Finding the Fourth Proportional to 18,895.50, 28,342.04 and 7,799.31

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Solution

The fourth proportional to 18,895.50, 28,342.04 and 7,799.31 is: 11,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.50 : 28,342.04 = 7,799.31 : x
  2. Step 2: Convert to fraction form
    18,895.50/28,342.04 = 7,799.31/x
  3. Step 3: Cross multiply
    18,895.50x = 28,342.04 × 7,799.31
  4. Step 4: Simplify right side
    18,895.50x = 221,048,317.00
  5. Step 5: Solve for x
    x = 221,048,317.00/18,895.50
  6. Step 6: Final answer
    x = 11,698.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.