Home / 12,886.16-19,335.72-9,605.84

Finding the Fourth Proportional to 12,886.16, 19,335.72 and 9,605.84

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Solution

The fourth proportional to 12,886.16, 19,335.72 and 9,605.84 is: 14,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.16 : 19,335.72 = 9,605.84 : x
  2. Step 2: Convert to fraction form
    12,886.16/19,335.72 = 9,605.84/x
  3. Step 3: Cross multiply
    12,886.16x = 19,335.72 × 9,605.84
  4. Step 4: Simplify right side
    12,886.16x = 185,735,832.60
  5. Step 5: Solve for x
    x = 185,735,832.60/12,886.16
  6. Step 6: Final answer
    x = 14,413.59

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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.