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Finding the Fourth Proportional to 13,773, 19,056.78 and 12,008.28

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Solution

The fourth proportional to 13,773, 19,056.78 and 12,008.28 is: 16,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773 : 19,056.78 = 12,008.28 : x
  2. Step 2: Convert to fraction form
    13,773/19,056.78 = 12,008.28/x
  3. Step 3: Cross multiply
    13,773x = 19,056.78 × 12,008.28
  4. Step 4: Simplify right side
    13,773x = 228,839,150.14
  5. Step 5: Solve for x
    x = 228,839,150.14/13,773
  6. Step 6: Final answer
    x = 16,615.05

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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.