Home / 13,606.48-20,415.56-7,370.88

Finding the Fourth Proportional to 13,606.48, 20,415.56 and 7,370.88

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Solution

The fourth proportional to 13,606.48, 20,415.56 and 7,370.88 is: 11,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.48 : 20,415.56 = 7,370.88 : x
  2. Step 2: Convert to fraction form
    13,606.48/20,415.56 = 7,370.88/x
  3. Step 3: Cross multiply
    13,606.48x = 20,415.56 × 7,370.88
  4. Step 4: Simplify right side
    13,606.48x = 150,480,642.89
  5. Step 5: Solve for x
    x = 150,480,642.89/13,606.48
  6. Step 6: Final answer
    x = 11,059.48

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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.