Home / 15,148.58-20,907.59-9,769.50

Finding the Fourth Proportional to 15,148.58, 20,907.59 and 9,769.50

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Solution

The fourth proportional to 15,148.58, 20,907.59 and 9,769.50 is: 13,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148.58 : 20,907.59 = 9,769.50 : x
  2. Step 2: Convert to fraction form
    15,148.58/20,907.59 = 9,769.50/x
  3. Step 3: Cross multiply
    15,148.58x = 20,907.59 × 9,769.50
  4. Step 4: Simplify right side
    15,148.58x = 204,256,651.66
  5. Step 5: Solve for x
    x = 204,256,651.66/15,148.58
  6. Step 6: Final answer
    x = 13,483.56

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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.