Home / 12,660.37-19,000.05-4,770.67

Finding the Fourth Proportional to 12,660.37, 19,000.05 and 4,770.67

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Solution

The fourth proportional to 12,660.37, 19,000.05 and 4,770.67 is: 7,159.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.37 : 19,000.05 = 4,770.67 : x
  2. Step 2: Convert to fraction form
    12,660.37/19,000.05 = 4,770.67/x
  3. Step 3: Cross multiply
    12,660.37x = 19,000.05 × 4,770.67
  4. Step 4: Simplify right side
    12,660.37x = 90,642,968.53
  5. Step 5: Solve for x
    x = 90,642,968.53/12,660.37
  6. Step 6: Final answer
    x = 7,159.58

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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.