Home / 12,688,006.62-17,509,466.85-6,886,789.56

Finding the Fourth Proportional to 12,688,006.62, 17,509,466.85 and 6,886,789.56

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Solution

The fourth proportional to 12,688,006.62, 17,509,466.85 and 6,886,789.56 is: 9,503,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,006.62 : 17,509,466.85 = 6,886,789.56 : x
  2. Step 2: Convert to fraction form
    12,688,006.62/17,509,466.85 = 6,886,789.56/x
  3. Step 3: Cross multiply
    12,688,006.62x = 17,509,466.85 × 6,886,789.56
  4. Step 4: Simplify right side
    12,688,006.62x = 120,584,013,503,746.09
  5. Step 5: Solve for x
    x = 120,584,013,503,746.09/12,688,006.62
  6. Step 6: Final answer
    x = 9,503,779.21

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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.