Home / 12,688,017.12-17,509,481.34-6,886,800.06

Finding the Fourth Proportional to 12,688,017.12, 17,509,481.34 and 6,886,800.06

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Solution

The fourth proportional to 12,688,017.12, 17,509,481.34 and 6,886,800.06 is: 9,503,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,017.12 : 17,509,481.34 = 6,886,800.06 : x
  2. Step 2: Convert to fraction form
    12,688,017.12/17,509,481.34 = 6,886,800.06/x
  3. Step 3: Cross multiply
    12,688,017.12x = 17,509,481.34 × 6,886,800.06
  4. Step 4: Simplify right side
    12,688,017.12x = 120,584,297,142,880.88
  5. Step 5: Solve for x
    x = 120,584,297,142,880.88/12,688,017.12
  6. Step 6: Final answer
    x = 9,503,793.70

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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.