Home / 8,428.90-11,631.67-4,652.02

Finding the Fourth Proportional to 8,428.90, 11,631.67 and 4,652.02

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Solution

The fourth proportional to 8,428.90, 11,631.67 and 4,652.02 is: 6,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.90 : 11,631.67 = 4,652.02 : x
  2. Step 2: Convert to fraction form
    8,428.90/11,631.67 = 4,652.02/x
  3. Step 3: Cross multiply
    8,428.90x = 11,631.67 × 4,652.02
  4. Step 4: Simplify right side
    8,428.90x = 54,110,761.47
  5. Step 5: Solve for x
    x = 54,110,761.47/8,428.90
  6. Step 6: Final answer
    x = 6,419.67

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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.