Home / 7,984.83-11,990.58-4,989.84

Finding the Fourth Proportional to 7,984.83, 11,990.58 and 4,989.84

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Solution

The fourth proportional to 7,984.83, 11,990.58 and 4,989.84 is: 7,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.83 : 11,990.58 = 4,989.84 : x
  2. Step 2: Convert to fraction form
    7,984.83/11,990.58 = 4,989.84/x
  3. Step 3: Cross multiply
    7,984.83x = 11,990.58 × 4,989.84
  4. Step 4: Simplify right side
    7,984.83x = 59,831,075.71
  5. Step 5: Solve for x
    x = 59,831,075.71/7,984.83
  6. Step 6: Final answer
    x = 7,493.09

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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.