Home / 8,965.96-13,451.33-7,985.50

Finding the Fourth Proportional to 8,965.96, 13,451.33 and 7,985.50

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Solution

The fourth proportional to 8,965.96, 13,451.33 and 7,985.50 is: 11,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.96 : 13,451.33 = 7,985.50 : x
  2. Step 2: Convert to fraction form
    8,965.96/13,451.33 = 7,985.50/x
  3. Step 3: Cross multiply
    8,965.96x = 13,451.33 × 7,985.50
  4. Step 4: Simplify right side
    8,965.96x = 107,415,582.05
  5. Step 5: Solve for x
    x = 107,415,582.05/8,965.96
  6. Step 6: Final answer
    x = 11,980.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.