Home / 10,907.40-16,328.70-7,213.80

Finding the Fourth Proportional to 10,907.40, 16,328.70 and 7,213.80

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Solution

The fourth proportional to 10,907.40, 16,328.70 and 7,213.80 is: 10,799.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.40 : 16,328.70 = 7,213.80 : x
  2. Step 2: Convert to fraction form
    10,907.40/16,328.70 = 7,213.80/x
  3. Step 3: Cross multiply
    10,907.40x = 16,328.70 × 7,213.80
  4. Step 4: Simplify right side
    10,907.40x = 117,791,976.06
  5. Step 5: Solve for x
    x = 117,791,976.06/10,907.40
  6. Step 6: Final answer
    x = 10,799.27

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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.