Home / 13,728.32-20,582.08-4,841.28

Finding the Fourth Proportional to 13,728.32, 20,582.08 and 4,841.28

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Solution

The fourth proportional to 13,728.32, 20,582.08 and 4,841.28 is: 7,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.32 : 20,582.08 = 4,841.28 : x
  2. Step 2: Convert to fraction form
    13,728.32/20,582.08 = 4,841.28/x
  3. Step 3: Cross multiply
    13,728.32x = 20,582.08 × 4,841.28
  4. Step 4: Simplify right side
    13,728.32x = 99,643,612.26
  5. Step 5: Solve for x
    x = 99,643,612.26/13,728.32
  6. Step 6: Final answer
    x = 7,258.25

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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.