Home / 12,529.05-18,779.88-7,852.50

Finding the Fourth Proportional to 12,529.05, 18,779.88 and 7,852.50

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Solution

The fourth proportional to 12,529.05, 18,779.88 and 7,852.50 is: 11,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.05 : 18,779.88 = 7,852.50 : x
  2. Step 2: Convert to fraction form
    12,529.05/18,779.88 = 7,852.50/x
  3. Step 3: Cross multiply
    12,529.05x = 18,779.88 × 7,852.50
  4. Step 4: Simplify right side
    12,529.05x = 147,469,007.70
  5. Step 5: Solve for x
    x = 147,469,007.70/12,529.05
  6. Step 6: Final answer
    x = 11,770.17

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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.