Home / 8,973.09-13,456.53-3,428.01

Finding the Fourth Proportional to 8,973.09, 13,456.53 and 3,428.01

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Solution

The fourth proportional to 8,973.09, 13,456.53 and 3,428.01 is: 5,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.09 : 13,456.53 = 3,428.01 : x
  2. Step 2: Convert to fraction form
    8,973.09/13,456.53 = 3,428.01/x
  3. Step 3: Cross multiply
    8,973.09x = 13,456.53 × 3,428.01
  4. Step 4: Simplify right side
    8,973.09x = 46,129,119.41
  5. Step 5: Solve for x
    x = 46,129,119.41/8,973.09
  6. Step 6: Final answer
    x = 5,140.83

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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.