Home / 12,807,879.15-17,680,132.22-8,683,559.31

Finding the Fourth Proportional to 12,807,879.15, 17,680,132.22 and 8,683,559.31

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Solution

The fourth proportional to 12,807,879.15, 17,680,132.22 and 8,683,559.31 is: 11,986,877.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807,879.15 : 17,680,132.22 = 8,683,559.31 : x
  2. Step 2: Convert to fraction form
    12,807,879.15/17,680,132.22 = 8,683,559.31/x
  3. Step 3: Cross multiply
    12,807,879.15x = 17,680,132.22 × 8,683,559.31
  4. Step 4: Simplify right side
    12,807,879.15x = 153,526,476,697,594.19
  5. Step 5: Solve for x
    x = 153,526,476,697,594.19/12,807,879.15
  6. Step 6: Final answer
    x = 11,986,877.37

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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.