Home / 15,605.81-23,408.75-8,585.54

Finding the Fourth Proportional to 15,605.81, 23,408.75 and 8,585.54

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Solution

The fourth proportional to 15,605.81, 23,408.75 and 8,585.54 is: 12,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.81 : 23,408.75 = 8,585.54 : x
  2. Step 2: Convert to fraction form
    15,605.81/23,408.75 = 8,585.54/x
  3. Step 3: Cross multiply
    15,605.81x = 23,408.75 × 8,585.54
  4. Step 4: Simplify right side
    15,605.81x = 200,976,835.06
  5. Step 5: Solve for x
    x = 200,976,835.06/15,605.81
  6. Step 6: Final answer
    x = 12,878.33

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1.5x scale

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.