Home / 10,109.58-15,147.81-9,725.58

Finding the Fourth Proportional to 10,109.58, 15,147.81 and 9,725.58

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Solution

The fourth proportional to 10,109.58, 15,147.81 and 9,725.58 is: 14,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.58 : 15,147.81 = 9,725.58 : x
  2. Step 2: Convert to fraction form
    10,109.58/15,147.81 = 9,725.58/x
  3. Step 3: Cross multiply
    10,109.58x = 15,147.81 × 9,725.58
  4. Step 4: Simplify right side
    10,109.58x = 147,321,237.98
  5. Step 5: Solve for x
    x = 147,321,237.98/10,109.58
  6. Step 6: Final answer
    x = 14,572.44

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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.