Home / 11,130.30-15,356.66-6,413.67

Finding the Fourth Proportional to 11,130.30, 15,356.66 and 6,413.67

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Solution

The fourth proportional to 11,130.30, 15,356.66 and 6,413.67 is: 8,849.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.30 : 15,356.66 = 6,413.67 : x
  2. Step 2: Convert to fraction form
    11,130.30/15,356.66 = 6,413.67/x
  3. Step 3: Cross multiply
    11,130.30x = 15,356.66 × 6,413.67
  4. Step 4: Simplify right side
    11,130.30x = 98,492,517.47
  5. Step 5: Solve for x
    x = 98,492,517.47/11,130.30
  6. Step 6: Final answer
    x = 8,849.04

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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.