Home / 13,386.47-20,080.74-3,525.63

Finding the Fourth Proportional to 13,386.47, 20,080.74 and 3,525.63

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Solution

The fourth proportional to 13,386.47, 20,080.74 and 3,525.63 is: 5,288.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.47 : 20,080.74 = 3,525.63 : x
  2. Step 2: Convert to fraction form
    13,386.47/20,080.74 = 3,525.63/x
  3. Step 3: Cross multiply
    13,386.47x = 20,080.74 × 3,525.63
  4. Step 4: Simplify right side
    13,386.47x = 70,797,197.28
  5. Step 5: Solve for x
    x = 70,797,197.28/13,386.47
  6. Step 6: Final answer
    x = 5,288.71

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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.