Home / 7,961.48-11,924.64-4,990.24

Finding the Fourth Proportional to 7,961.48, 11,924.64 and 4,990.24

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Solution

The fourth proportional to 7,961.48, 11,924.64 and 4,990.24 is: 7,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.48 : 11,924.64 = 4,990.24 : x
  2. Step 2: Convert to fraction form
    7,961.48/11,924.64 = 4,990.24/x
  3. Step 3: Cross multiply
    7,961.48x = 11,924.64 × 4,990.24
  4. Step 4: Simplify right side
    7,961.48x = 59,506,815.51
  5. Step 5: Solve for x
    x = 59,506,815.51/7,961.48
  6. Step 6: Final answer
    x = 7,474.34

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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.