Home / 15,413.04-23,115.60-7,515.72

Finding the Fourth Proportional to 15,413.04, 23,115.60 and 7,515.72

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Solution

The fourth proportional to 15,413.04, 23,115.60 and 7,515.72 is: 11,271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.04 : 23,115.60 = 7,515.72 : x
  2. Step 2: Convert to fraction form
    15,413.04/23,115.60 = 7,515.72/x
  3. Step 3: Cross multiply
    15,413.04x = 23,115.60 × 7,515.72
  4. Step 4: Simplify right side
    15,413.04x = 173,730,377.23
  5. Step 5: Solve for x
    x = 173,730,377.23/15,413.04
  6. Step 6: Final answer
    x = 11,271.65

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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.