Home / 13,907.43-20,858.31-6,509.88

Finding the Fourth Proportional to 13,907.43, 20,858.31 and 6,509.88

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Solution

The fourth proportional to 13,907.43, 20,858.31 and 6,509.88 is: 9,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.43 : 20,858.31 = 6,509.88 : x
  2. Step 2: Convert to fraction form
    13,907.43/20,858.31 = 6,509.88/x
  3. Step 3: Cross multiply
    13,907.43x = 20,858.31 × 6,509.88
  4. Step 4: Simplify right side
    13,907.43x = 135,785,095.10
  5. Step 5: Solve for x
    x = 135,785,095.10/13,907.43
  6. Step 6: Final answer
    x = 9,763.49

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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.