Home / 10,276.15-15,413.64-2,779.60

Finding the Fourth Proportional to 10,276.15, 15,413.64 and 2,779.60

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Solution

The fourth proportional to 10,276.15, 15,413.64 and 2,779.60 is: 4,169.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.15 : 15,413.64 = 2,779.60 : x
  2. Step 2: Convert to fraction form
    10,276.15/15,413.64 = 2,779.60/x
  3. Step 3: Cross multiply
    10,276.15x = 15,413.64 × 2,779.60
  4. Step 4: Simplify right side
    10,276.15x = 42,843,753.74
  5. Step 5: Solve for x
    x = 42,843,753.74/10,276.15
  6. Step 6: Final answer
    x = 4,169.24

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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.