Home / 9,021.58-13,533.90-2,781.46

Finding the Fourth Proportional to 9,021.58, 13,533.90 and 2,781.46

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Solution

The fourth proportional to 9,021.58, 13,533.90 and 2,781.46 is: 4,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.58 : 13,533.90 = 2,781.46 : x
  2. Step 2: Convert to fraction form
    9,021.58/13,533.90 = 2,781.46/x
  3. Step 3: Cross multiply
    9,021.58x = 13,533.90 × 2,781.46
  4. Step 4: Simplify right side
    9,021.58x = 37,644,001.49
  5. Step 5: Solve for x
    x = 37,644,001.49/9,021.58
  6. Step 6: Final answer
    x = 4,172.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.