Home / 11,116.22-15,334.32-7,137.93

Finding the Fourth Proportional to 11,116.22, 15,334.32 and 7,137.93

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Solution

The fourth proportional to 11,116.22, 15,334.32 and 7,137.93 is: 9,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.22 : 15,334.32 = 7,137.93 : x
  2. Step 2: Convert to fraction form
    11,116.22/15,334.32 = 7,137.93/x
  3. Step 3: Cross multiply
    11,116.22x = 15,334.32 × 7,137.93
  4. Step 4: Simplify right side
    11,116.22x = 109,455,302.76
  5. Step 5: Solve for x
    x = 109,455,302.76/11,116.22
  6. Step 6: Final answer
    x = 9,846.45

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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.