Home / 15,726,150.72-21,702,786.12-8,851,078.08

Finding the Fourth Proportional to 15,726,150.72, 21,702,786.12 and 8,851,078.08

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Solution

The fourth proportional to 15,726,150.72, 21,702,786.12 and 8,851,078.08 is: 12,214,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726,150.72 : 21,702,786.12 = 8,851,078.08 : x
  2. Step 2: Convert to fraction form
    15,726,150.72/21,702,786.12 = 8,851,078.08/x
  3. Step 3: Cross multiply
    15,726,150.72x = 21,702,786.12 × 8,851,078.08
  4. Step 4: Simplify right side
    15,726,150.72x = 192,093,054,501,660.25
  5. Step 5: Solve for x
    x = 192,093,054,501,660.25/15,726,150.72
  6. Step 6: Final answer
    x = 12,214,880.67

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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.