Home / 18,968.88-28,456.67-6,485.97

Finding the Fourth Proportional to 18,968.88, 28,456.67 and 6,485.97

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Solution

The fourth proportional to 18,968.88, 28,456.67 and 6,485.97 is: 9,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.88 : 28,456.67 = 6,485.97 : x
  2. Step 2: Convert to fraction form
    18,968.88/28,456.67 = 6,485.97/x
  3. Step 3: Cross multiply
    18,968.88x = 28,456.67 × 6,485.97
  4. Step 4: Simplify right side
    18,968.88x = 184,569,075.49
  5. Step 5: Solve for x
    x = 184,569,075.49/18,968.88
  6. Step 6: Final answer
    x = 9,730.10

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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.