Home / 10,670.43-16,009.80-4,428.87

Finding the Fourth Proportional to 10,670.43, 16,009.80 and 4,428.87

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Solution

The fourth proportional to 10,670.43, 16,009.80 and 4,428.87 is: 6,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,670.43 : 16,009.80 = 4,428.87 : x
  2. Step 2: Convert to fraction form
    10,670.43/16,009.80 = 4,428.87/x
  3. Step 3: Cross multiply
    10,670.43x = 16,009.80 × 4,428.87
  4. Step 4: Simplify right side
    10,670.43x = 70,905,322.93
  5. Step 5: Solve for x
    x = 70,905,322.93/10,670.43
  6. Step 6: Final answer
    x = 6,645.03

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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.