Home / 14,280.90-19,708.20-7,907.37

Finding the Fourth Proportional to 14,280.90, 19,708.20 and 7,907.37

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Solution

The fourth proportional to 14,280.90, 19,708.20 and 7,907.37 is: 10,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.90 : 19,708.20 = 7,907.37 : x
  2. Step 2: Convert to fraction form
    14,280.90/19,708.20 = 7,907.37/x
  3. Step 3: Cross multiply
    14,280.90x = 19,708.20 × 7,907.37
  4. Step 4: Simplify right side
    14,280.90x = 155,840,080.29
  5. Step 5: Solve for x
    x = 155,840,080.29/14,280.90
  6. Step 6: Final answer
    x = 10,912.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.