Home / 10,413.32-15,582.90-8,346.60

Finding the Fourth Proportional to 10,413.32, 15,582.90 and 8,346.60

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Solution

The fourth proportional to 10,413.32, 15,582.90 and 8,346.60 is: 12,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,413.32 : 15,582.90 = 8,346.60 : x
  2. Step 2: Convert to fraction form
    10,413.32/15,582.90 = 8,346.60/x
  3. Step 3: Cross multiply
    10,413.32x = 15,582.90 × 8,346.60
  4. Step 4: Simplify right side
    10,413.32x = 130,064,233.14
  5. Step 5: Solve for x
    x = 130,064,233.14/10,413.32
  6. Step 6: Final answer
    x = 12,490.18

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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.