Home / 8,699.64-13,023.84-5,402.12

Finding the Fourth Proportional to 8,699.64, 13,023.84 and 5,402.12

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Solution

The fourth proportional to 8,699.64, 13,023.84 and 5,402.12 is: 8,087.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.64 : 13,023.84 = 5,402.12 : x
  2. Step 2: Convert to fraction form
    8,699.64/13,023.84 = 5,402.12/x
  3. Step 3: Cross multiply
    8,699.64x = 13,023.84 × 5,402.12
  4. Step 4: Simplify right side
    8,699.64x = 70,356,346.54
  5. Step 5: Solve for x
    x = 70,356,346.54/8,699.64
  6. Step 6: Final answer
    x = 8,087.27

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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.