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Finding the Fourth Proportional to 13,701, 18,904.08 and 8,323.28

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Solution

The fourth proportional to 13,701, 18,904.08 and 8,323.28 is: 11,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701 : 18,904.08 = 8,323.28 : x
  2. Step 2: Convert to fraction form
    13,701/18,904.08 = 8,323.28/x
  3. Step 3: Cross multiply
    13,701x = 18,904.08 × 8,323.28
  4. Step 4: Simplify right side
    13,701x = 157,343,950.98
  5. Step 5: Solve for x
    x = 157,343,950.98/13,701
  6. Step 6: Final answer
    x = 11,484.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.