Home / 13,700.36-20,548.92-5,386.88

Finding the Fourth Proportional to 13,700.36, 20,548.92 and 5,386.88

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Solution

The fourth proportional to 13,700.36, 20,548.92 and 5,386.88 is: 8,079.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.36 : 20,548.92 = 5,386.88 : x
  2. Step 2: Convert to fraction form
    13,700.36/20,548.92 = 5,386.88/x
  3. Step 3: Cross multiply
    13,700.36x = 20,548.92 × 5,386.88
  4. Step 4: Simplify right side
    13,700.36x = 110,694,566.17
  5. Step 5: Solve for x
    x = 110,694,566.17/13,700.36
  6. Step 6: Final answer
    x = 8,079.68

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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.