Home / 13,299.75-19,923.03-8,603.55

Finding the Fourth Proportional to 13,299.75, 19,923.03 and 8,603.55

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Solution

The fourth proportional to 13,299.75, 19,923.03 and 8,603.55 is: 12,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.75 : 19,923.03 = 8,603.55 : x
  2. Step 2: Convert to fraction form
    13,299.75/19,923.03 = 8,603.55/x
  3. Step 3: Cross multiply
    13,299.75x = 19,923.03 × 8,603.55
  4. Step 4: Simplify right side
    13,299.75x = 171,408,784.76
  5. Step 5: Solve for x
    x = 171,408,784.76/13,299.75
  6. Step 6: Final answer
    x = 12,888.12

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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.