Home / 8,982.67-12,396.36-5,155.01

Finding the Fourth Proportional to 8,982.67, 12,396.36 and 5,155.01

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Solution

The fourth proportional to 8,982.67, 12,396.36 and 5,155.01 is: 7,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.67 : 12,396.36 = 5,155.01 : x
  2. Step 2: Convert to fraction form
    8,982.67/12,396.36 = 5,155.01/x
  3. Step 3: Cross multiply
    8,982.67x = 12,396.36 × 5,155.01
  4. Step 4: Simplify right side
    8,982.67x = 63,903,313.89
  5. Step 5: Solve for x
    x = 63,903,313.89/8,982.67
  6. Step 6: Final answer
    x = 7,114.07

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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.