Home / 12,470.31-17,212.60-7,370.55

Finding the Fourth Proportional to 12,470.31, 17,212.60 and 7,370.55

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Solution

The fourth proportional to 12,470.31, 17,212.60 and 7,370.55 is: 10,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.31 : 17,212.60 = 7,370.55 : x
  2. Step 2: Convert to fraction form
    12,470.31/17,212.60 = 7,370.55/x
  3. Step 3: Cross multiply
    12,470.31x = 17,212.60 × 7,370.55
  4. Step 4: Simplify right side
    12,470.31x = 126,866,338.14
  5. Step 5: Solve for x
    x = 126,866,338.14/12,470.31
  6. Step 6: Final answer
    x = 10,173.47

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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.