Home / 8,579.79-11,838.15-5,222.34

Finding the Fourth Proportional to 8,579.79, 11,838.15 and 5,222.34

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Solution

The fourth proportional to 8,579.79, 11,838.15 and 5,222.34 is: 7,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.79 : 11,838.15 = 5,222.34 : x
  2. Step 2: Convert to fraction form
    8,579.79/11,838.15 = 5,222.34/x
  3. Step 3: Cross multiply
    8,579.79x = 11,838.15 × 5,222.34
  4. Step 4: Simplify right side
    8,579.79x = 61,822,844.27
  5. Step 5: Solve for x
    x = 61,822,844.27/8,579.79
  6. Step 6: Final answer
    x = 7,205.64

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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.