Home / 8,820.36-12,168.99-5,459.67

Finding the Fourth Proportional to 8,820.36, 12,168.99 and 5,459.67

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Solution

The fourth proportional to 8,820.36, 12,168.99 and 5,459.67 is: 7,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.36 : 12,168.99 = 5,459.67 : x
  2. Step 2: Convert to fraction form
    8,820.36/12,168.99 = 5,459.67/x
  3. Step 3: Cross multiply
    8,820.36x = 12,168.99 × 5,459.67
  4. Step 4: Simplify right side
    8,820.36x = 66,438,669.63
  5. Step 5: Solve for x
    x = 66,438,669.63/8,820.36
  6. Step 6: Final answer
    x = 7,532.42

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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.