Home / 13,345.90-20,019.26-4,580.69

Finding the Fourth Proportional to 13,345.90, 20,019.26 and 4,580.69

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Solution

The fourth proportional to 13,345.90, 20,019.26 and 4,580.69 is: 6,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.90 : 20,019.26 = 4,580.69 : x
  2. Step 2: Convert to fraction form
    13,345.90/20,019.26 = 4,580.69/x
  3. Step 3: Cross multiply
    13,345.90x = 20,019.26 × 4,580.69
  4. Step 4: Simplify right side
    13,345.90x = 91,702,024.09
  5. Step 5: Solve for x
    x = 91,702,024.09/13,345.90
  6. Step 6: Final answer
    x = 6,871.18

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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.