Home / 8,416.98-11,608.62-7,406.51

Finding the Fourth Proportional to 8,416.98, 11,608.62 and 7,406.51

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Solution

The fourth proportional to 8,416.98, 11,608.62 and 7,406.51 is: 10,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.98 : 11,608.62 = 7,406.51 : x
  2. Step 2: Convert to fraction form
    8,416.98/11,608.62 = 7,406.51/x
  3. Step 3: Cross multiply
    8,416.98x = 11,608.62 × 7,406.51
  4. Step 4: Simplify right side
    8,416.98x = 85,979,274.30
  5. Step 5: Solve for x
    x = 85,979,274.30/8,416.98
  6. Step 6: Final answer
    x = 10,214.98

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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.