Home / 10,931.40-16,413.60-8,733.60

Finding the Fourth Proportional to 10,931.40, 16,413.60 and 8,733.60

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Solution

The fourth proportional to 10,931.40, 16,413.60 and 8,733.60 is: 13,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.40 : 16,413.60 = 8,733.60 : x
  2. Step 2: Convert to fraction form
    10,931.40/16,413.60 = 8,733.60/x
  3. Step 3: Cross multiply
    10,931.40x = 16,413.60 × 8,733.60
  4. Step 4: Simplify right side
    10,931.40x = 143,349,816.96
  5. Step 5: Solve for x
    x = 143,349,816.96/10,931.40
  6. Step 6: Final answer
    x = 13,113.58

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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.