Home / 13,743.81-20,598.84-5,415.48

Finding the Fourth Proportional to 13,743.81, 20,598.84 and 5,415.48

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Solution

The fourth proportional to 13,743.81, 20,598.84 and 5,415.48 is: 8,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.81 : 20,598.84 = 5,415.48 : x
  2. Step 2: Convert to fraction form
    13,743.81/20,598.84 = 5,415.48/x
  3. Step 3: Cross multiply
    13,743.81x = 20,598.84 × 5,415.48
  4. Step 4: Simplify right side
    13,743.81x = 111,552,606.04
  5. Step 5: Solve for x
    x = 111,552,606.04/13,743.81
  6. Step 6: Final answer
    x = 8,116.57

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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.