Home / 9,509.99-13,119.41-6,153.89

Finding the Fourth Proportional to 9,509.99, 13,119.41 and 6,153.89

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Solution

The fourth proportional to 9,509.99, 13,119.41 and 6,153.89 is: 8,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.99 : 13,119.41 = 6,153.89 : x
  2. Step 2: Convert to fraction form
    9,509.99/13,119.41 = 6,153.89/x
  3. Step 3: Cross multiply
    9,509.99x = 13,119.41 × 6,153.89
  4. Step 4: Simplify right side
    9,509.99x = 80,735,355.79
  5. Step 5: Solve for x
    x = 80,735,355.79/9,509.99
  6. Step 6: Final answer
    x = 8,489.54

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.