Home / 12,911.76-19,360.08-9,237.60

Finding the Fourth Proportional to 12,911.76, 19,360.08 and 9,237.60

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Solution

The fourth proportional to 12,911.76, 19,360.08 and 9,237.60 is: 13,850.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.76 : 19,360.08 = 9,237.60 : x
  2. Step 2: Convert to fraction form
    12,911.76/19,360.08 = 9,237.60/x
  3. Step 3: Cross multiply
    12,911.76x = 19,360.08 × 9,237.60
  4. Step 4: Simplify right side
    12,911.76x = 178,840,675.01
  5. Step 5: Solve for x
    x = 178,840,675.01/12,911.76
  6. Step 6: Final answer
    x = 13,850.99

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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.