Home / 8,706.89-12,016.50-4,930.32

Finding the Fourth Proportional to 8,706.89, 12,016.50 and 4,930.32

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Solution

The fourth proportional to 8,706.89, 12,016.50 and 4,930.32 is: 6,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.89 : 12,016.50 = 4,930.32 : x
  2. Step 2: Convert to fraction form
    8,706.89/12,016.50 = 4,930.32/x
  3. Step 3: Cross multiply
    8,706.89x = 12,016.50 × 4,930.32
  4. Step 4: Simplify right side
    8,706.89x = 59,245,176.99
  5. Step 5: Solve for x
    x = 59,245,176.99/8,706.89
  6. Step 6: Final answer
    x = 6,804.40

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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.