Home / 7,923.60-11,875.80-3,536.40

Finding the Fourth Proportional to 7,923.60, 11,875.80 and 3,536.40

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Solution

The fourth proportional to 7,923.60, 11,875.80 and 3,536.40 is: 5,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.60 : 11,875.80 = 3,536.40 : x
  2. Step 2: Convert to fraction form
    7,923.60/11,875.80 = 3,536.40/x
  3. Step 3: Cross multiply
    7,923.60x = 11,875.80 × 3,536.40
  4. Step 4: Simplify right side
    7,923.60x = 41,997,579.12
  5. Step 5: Solve for x
    x = 41,997,579.12/7,923.60
  6. Step 6: Final answer
    x = 5,300.32

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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.