Home / 8,942.68-12,345.34-5,587.36

Finding the Fourth Proportional to 8,942.68, 12,345.34 and 5,587.36

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Solution

The fourth proportional to 8,942.68, 12,345.34 and 5,587.36 is: 7,713.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.68 : 12,345.34 = 5,587.36 : x
  2. Step 2: Convert to fraction form
    8,942.68/12,345.34 = 5,587.36/x
  3. Step 3: Cross multiply
    8,942.68x = 12,345.34 × 5,587.36
  4. Step 4: Simplify right side
    8,942.68x = 68,977,858.90
  5. Step 5: Solve for x
    x = 68,977,858.90/8,942.68
  6. Step 6: Final answer
    x = 7,713.33

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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.