Home / 12,280.95-16,948.12-6,904.33

Finding the Fourth Proportional to 12,280.95, 16,948.12 and 6,904.33

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Solution

The fourth proportional to 12,280.95, 16,948.12 and 6,904.33 is: 9,528.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.95 : 16,948.12 = 6,904.33 : x
  2. Step 2: Convert to fraction form
    12,280.95/16,948.12 = 6,904.33/x
  3. Step 3: Cross multiply
    12,280.95x = 16,948.12 × 6,904.33
  4. Step 4: Simplify right side
    12,280.95x = 117,015,413.36
  5. Step 5: Solve for x
    x = 117,015,413.36/12,280.95
  6. Step 6: Final answer
    x = 9,528.21

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Double scale
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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.