Home / 8,911.08-12,295.62-5,184.36

Finding the Fourth Proportional to 8,911.08, 12,295.62 and 5,184.36

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Solution

The fourth proportional to 8,911.08, 12,295.62 and 5,184.36 is: 7,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.08 : 12,295.62 = 5,184.36 : x
  2. Step 2: Convert to fraction form
    8,911.08/12,295.62 = 5,184.36/x
  3. Step 3: Cross multiply
    8,911.08x = 12,295.62 × 5,184.36
  4. Step 4: Simplify right side
    8,911.08x = 63,744,920.50
  5. Step 5: Solve for x
    x = 63,744,920.50/8,911.08
  6. Step 6: Final answer
    x = 7,153.44

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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.