Home / 11,137.21-15,368.80-6,101.45

Finding the Fourth Proportional to 11,137.21, 15,368.80 and 6,101.45

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Solution

The fourth proportional to 11,137.21, 15,368.80 and 6,101.45 is: 8,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.21 : 15,368.80 = 6,101.45 : x
  2. Step 2: Convert to fraction form
    11,137.21/15,368.80 = 6,101.45/x
  3. Step 3: Cross multiply
    11,137.21x = 15,368.80 × 6,101.45
  4. Step 4: Simplify right side
    11,137.21x = 93,771,987.93
  5. Step 5: Solve for x
    x = 93,771,987.93/11,137.21
  6. Step 6: Final answer
    x = 8,419.70

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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.