Home / 13,386.08-20,079.29-3,525.44

Finding the Fourth Proportional to 13,386.08, 20,079.29 and 3,525.44

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Solution

The fourth proportional to 13,386.08, 20,079.29 and 3,525.44 is: 5,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.08 : 20,079.29 = 3,525.44 : x
  2. Step 2: Convert to fraction form
    13,386.08/20,079.29 = 3,525.44/x
  3. Step 3: Cross multiply
    13,386.08x = 20,079.29 × 3,525.44
  4. Step 4: Simplify right side
    13,386.08x = 70,788,353.50
  5. Step 5: Solve for x
    x = 70,788,353.50/13,386.08
  6. Step 6: Final answer
    x = 5,288.21

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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.