Home / 13,347.51-20,033.36-7,112.79

Finding the Fourth Proportional to 13,347.51, 20,033.36 and 7,112.79

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Solution

The fourth proportional to 13,347.51, 20,033.36 and 7,112.79 is: 10,675.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.51 : 20,033.36 = 7,112.79 : x
  2. Step 2: Convert to fraction form
    13,347.51/20,033.36 = 7,112.79/x
  3. Step 3: Cross multiply
    13,347.51x = 20,033.36 × 7,112.79
  4. Step 4: Simplify right side
    13,347.51x = 142,493,047.11
  5. Step 5: Solve for x
    x = 142,493,047.11/13,347.51
  6. Step 6: Final answer
    x = 10,675.63

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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.