Home / 9,509.79-13,119.09-6,153.69

Finding the Fourth Proportional to 9,509.79, 13,119.09 and 6,153.69

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Solution

The fourth proportional to 9,509.79, 13,119.09 and 6,153.69 is: 8,489.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.79 : 13,119.09 = 6,153.69 : x
  2. Step 2: Convert to fraction form
    9,509.79/13,119.09 = 6,153.69/x
  3. Step 3: Cross multiply
    9,509.79x = 13,119.09 × 6,153.69
  4. Step 4: Simplify right side
    9,509.79x = 80,730,747.35
  5. Step 5: Solve for x
    x = 80,730,747.35/9,509.79
  6. Step 6: Final answer
    x = 8,489.23

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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.