Home / 14,091.14-21,118.62-5,315.60

Finding the Fourth Proportional to 14,091.14, 21,118.62 and 5,315.60

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Solution

The fourth proportional to 14,091.14, 21,118.62 and 5,315.60 is: 7,966.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.14 : 21,118.62 = 5,315.60 : x
  2. Step 2: Convert to fraction form
    14,091.14/21,118.62 = 5,315.60/x
  3. Step 3: Cross multiply
    14,091.14x = 21,118.62 × 5,315.60
  4. Step 4: Simplify right side
    14,091.14x = 112,258,136.47
  5. Step 5: Solve for x
    x = 112,258,136.47/14,091.14
  6. Step 6: Final answer
    x = 7,966.58

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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.