Home / 13,521.26-20,276.40-4,754.12

Finding the Fourth Proportional to 13,521.26, 20,276.40 and 4,754.12

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Solution

The fourth proportional to 13,521.26, 20,276.40 and 4,754.12 is: 7,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.26 : 20,276.40 = 4,754.12 : x
  2. Step 2: Convert to fraction form
    13,521.26/20,276.40 = 4,754.12/x
  3. Step 3: Cross multiply
    13,521.26x = 20,276.40 × 4,754.12
  4. Step 4: Simplify right side
    13,521.26x = 96,396,438.77
  5. Step 5: Solve for x
    x = 96,396,438.77/13,521.26
  6. Step 6: Final answer
    x = 7,129.25

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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.