Home / 15,106.18-20,845.56-9,440.62

Finding the Fourth Proportional to 15,106.18, 20,845.56 and 9,440.62

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Solution

The fourth proportional to 15,106.18, 20,845.56 and 9,440.62 is: 13,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.18 : 20,845.56 = 9,440.62 : x
  2. Step 2: Convert to fraction form
    15,106.18/20,845.56 = 9,440.62/x
  3. Step 3: Cross multiply
    15,106.18x = 20,845.56 × 9,440.62
  4. Step 4: Simplify right side
    15,106.18x = 196,795,010.65
  5. Step 5: Solve for x
    x = 196,795,010.65/15,106.18
  6. Step 6: Final answer
    x = 13,027.45

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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.