Home / 11,555,979-15,947,236.63-6,399,334.32

Finding the Fourth Proportional to 11,555,979, 15,947,236.63 and 6,399,334.32

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Solution

The fourth proportional to 11,555,979, 15,947,236.63 and 6,399,334.32 is: 8,831,073.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555,979 : 15,947,236.63 = 6,399,334.32 : x
  2. Step 2: Convert to fraction form
    11,555,979/15,947,236.63 = 6,399,334.32/x
  3. Step 3: Cross multiply
    11,555,979x = 15,947,236.63 × 6,399,334.32
  4. Step 4: Simplify right side
    11,555,979x = 102,051,698,675,520.16
  5. Step 5: Solve for x
    x = 102,051,698,675,520.16/11,555,979
  6. Step 6: Final answer
    x = 8,831,073.39

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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.