Home / 13,521.44-20,284.32-5,730.32

Finding the Fourth Proportional to 13,521.44, 20,284.32 and 5,730.32

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Solution

The fourth proportional to 13,521.44, 20,284.32 and 5,730.32 is: 8,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.44 : 20,284.32 = 5,730.32 : x
  2. Step 2: Convert to fraction form
    13,521.44/20,284.32 = 5,730.32/x
  3. Step 3: Cross multiply
    13,521.44x = 20,284.32 × 5,730.32
  4. Step 4: Simplify right side
    13,521.44x = 116,235,644.58
  5. Step 5: Solve for x
    x = 116,235,644.58/13,521.44
  6. Step 6: Final answer
    x = 8,596.40

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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.