Home / 19,213.40-28,815.30-7,364.60

Finding the Fourth Proportional to 19,213.40, 28,815.30 and 7,364.60

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Solution

The fourth proportional to 19,213.40, 28,815.30 and 7,364.60 is: 11,045.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.40 : 28,815.30 = 7,364.60 : x
  2. Step 2: Convert to fraction form
    19,213.40/28,815.30 = 7,364.60/x
  3. Step 3: Cross multiply
    19,213.40x = 28,815.30 × 7,364.60
  4. Step 4: Simplify right side
    19,213.40x = 212,213,158.38
  5. Step 5: Solve for x
    x = 212,213,158.38/19,213.40
  6. Step 6: Final answer
    x = 11,045.06

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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.