Home / 12,646.14-18,953.85-8,949.45

Finding the Fourth Proportional to 12,646.14, 18,953.85 and 8,949.45

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Solution

The fourth proportional to 12,646.14, 18,953.85 and 8,949.45 is: 13,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.14 : 18,953.85 = 8,949.45 : x
  2. Step 2: Convert to fraction form
    12,646.14/18,953.85 = 8,949.45/x
  3. Step 3: Cross multiply
    12,646.14x = 18,953.85 × 8,949.45
  4. Step 4: Simplify right side
    12,646.14x = 169,626,532.88
  5. Step 5: Solve for x
    x = 169,626,532.88/12,646.14
  6. Step 6: Final answer
    x = 13,413.30

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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.