Home / 19,000.47-28,505.93-7,912.35

Finding the Fourth Proportional to 19,000.47, 28,505.93 and 7,912.35

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Solution

The fourth proportional to 19,000.47, 28,505.93 and 7,912.35 is: 11,870.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.47 : 28,505.93 = 7,912.35 : x
  2. Step 2: Convert to fraction form
    19,000.47/28,505.93 = 7,912.35/x
  3. Step 3: Cross multiply
    19,000.47x = 28,505.93 × 7,912.35
  4. Step 4: Simplify right side
    19,000.47x = 225,548,855.67
  5. Step 5: Solve for x
    x = 225,548,855.67/19,000.47
  6. Step 6: Final answer
    x = 11,870.70

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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.