Home / 8,942.08-12,339.16-5,166.45

Finding the Fourth Proportional to 8,942.08, 12,339.16 and 5,166.45

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Solution

The fourth proportional to 8,942.08, 12,339.16 and 5,166.45 is: 7,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.08 : 12,339.16 = 5,166.45 : x
  2. Step 2: Convert to fraction form
    8,942.08/12,339.16 = 5,166.45/x
  3. Step 3: Cross multiply
    8,942.08x = 12,339.16 × 5,166.45
  4. Step 4: Simplify right side
    8,942.08x = 63,749,653.18
  5. Step 5: Solve for x
    x = 63,749,653.18/8,942.08
  6. Step 6: Final answer
    x = 7,129.17

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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.