Home / 12,688,086.42-17,509,573.44-6,886,866.62

Finding the Fourth Proportional to 12,688,086.42, 17,509,573.44 and 6,886,866.62

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Solution

The fourth proportional to 12,688,086.42, 17,509,573.44 and 6,886,866.62 is: 9,503,883.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,086.42 : 17,509,573.44 = 6,886,866.62 : x
  2. Step 2: Convert to fraction form
    12,688,086.42/17,509,573.44 = 6,886,866.62/x
  3. Step 3: Cross multiply
    12,688,086.42x = 17,509,573.44 × 6,886,866.62
  4. Step 4: Simplify right side
    12,688,086.42x = 120,586,096,898,148.52
  5. Step 5: Solve for x
    x = 120,586,096,898,148.52/12,688,086.42
  6. Step 6: Final answer
    x = 9,503,883.64

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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.