Home / 13,908.77-20,838.74-11,583.72

Finding the Fourth Proportional to 13,908.77, 20,838.74 and 11,583.72

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Solution

The fourth proportional to 13,908.77, 20,838.74 and 11,583.72 is: 17,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.77 : 20,838.74 = 11,583.72 : x
  2. Step 2: Convert to fraction form
    13,908.77/20,838.74 = 11,583.72/x
  3. Step 3: Cross multiply
    13,908.77x = 20,838.74 × 11,583.72
  4. Step 4: Simplify right side
    13,908.77x = 241,390,071.39
  5. Step 5: Solve for x
    x = 241,390,071.39/13,908.77
  6. Step 6: Final answer
    x = 17,355.25

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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.