Home / 12,688,012.62-17,509,475.16-6,886,795.56

Finding the Fourth Proportional to 12,688,012.62, 17,509,475.16 and 6,886,795.56

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Solution

The fourth proportional to 12,688,012.62, 17,509,475.16 and 6,886,795.56 is: 9,503,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,012.62 : 17,509,475.16 = 6,886,795.56 : x
  2. Step 2: Convert to fraction form
    12,688,012.62/17,509,475.16 = 6,886,795.56/x
  3. Step 3: Cross multiply
    12,688,012.62x = 17,509,475.16 × 6,886,795.56
  4. Step 4: Simplify right side
    12,688,012.62x = 120,584,175,789,818.28
  5. Step 5: Solve for x
    x = 120,584,175,789,818.28/12,688,012.62
  6. Step 6: Final answer
    x = 9,503,787.50

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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.