Home / 11,228.88-15,501.44-8,705.32

Finding the Fourth Proportional to 11,228.88, 15,501.44 and 8,705.32

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Solution

The fourth proportional to 11,228.88, 15,501.44 and 8,705.32 is: 12,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.88 : 15,501.44 = 8,705.32 : x
  2. Step 2: Convert to fraction form
    11,228.88/15,501.44 = 8,705.32/x
  3. Step 3: Cross multiply
    11,228.88x = 15,501.44 × 8,705.32
  4. Step 4: Simplify right side
    11,228.88x = 134,944,995.66
  5. Step 5: Solve for x
    x = 134,944,995.66/11,228.88
  6. Step 6: Final answer
    x = 12,017.67

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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.