Home / 12,688,009.62-17,509,470.99-6,886,792.56

Finding the Fourth Proportional to 12,688,009.62, 17,509,470.99 and 6,886,792.56

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Solution

The fourth proportional to 12,688,009.62, 17,509,470.99 and 6,886,792.56 is: 9,503,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,009.62 : 17,509,470.99 = 6,886,792.56 : x
  2. Step 2: Convert to fraction form
    12,688,009.62/17,509,470.99 = 6,886,792.56/x
  3. Step 3: Cross multiply
    12,688,009.62x = 17,509,470.99 × 6,886,792.56
  4. Step 4: Simplify right side
    12,688,009.62x = 120,584,094,543,467.81
  5. Step 5: Solve for x
    x = 120,584,094,543,467.81/12,688,009.62
  6. Step 6: Final answer
    x = 9,503,783.35

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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.