Home / 8,428.84-12,647.81-3,501.88

Finding the Fourth Proportional to 8,428.84, 12,647.81 and 3,501.88

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Solution

The fourth proportional to 8,428.84, 12,647.81 and 3,501.88 is: 5,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.84 : 12,647.81 = 3,501.88 : x
  2. Step 2: Convert to fraction form
    8,428.84/12,647.81 = 3,501.88/x
  3. Step 3: Cross multiply
    8,428.84x = 12,647.81 × 3,501.88
  4. Step 4: Simplify right side
    8,428.84x = 44,291,032.13
  5. Step 5: Solve for x
    x = 44,291,032.13/8,428.84
  6. Step 6: Final answer
    x = 5,254.70

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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.