Home / 11,021.36-15,205.04-7,041.44

Finding the Fourth Proportional to 11,021.36, 15,205.04 and 7,041.44

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Solution

The fourth proportional to 11,021.36, 15,205.04 and 7,041.44 is: 9,714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.36 : 15,205.04 = 7,041.44 : x
  2. Step 2: Convert to fraction form
    11,021.36/15,205.04 = 7,041.44/x
  3. Step 3: Cross multiply
    11,021.36x = 15,205.04 × 7,041.44
  4. Step 4: Simplify right side
    11,021.36x = 107,065,376.86
  5. Step 5: Solve for x
    x = 107,065,376.86/11,021.36
  6. Step 6: Final answer
    x = 9,714.35

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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.