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Finding the Fourth Proportional to 13,889.88, 19,168.03 and 7,602.25

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Solution

The fourth proportional to 13,889.88, 19,168.03 and 7,602.25 is: 10,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.88 : 19,168.03 = 7,602.25 : x
  2. Step 2: Convert to fraction form
    13,889.88/19,168.03 = 7,602.25/x
  3. Step 3: Cross multiply
    13,889.88x = 19,168.03 × 7,602.25
  4. Step 4: Simplify right side
    13,889.88x = 145,720,156.07
  5. Step 5: Solve for x
    x = 145,720,156.07/13,889.88
  6. Step 6: Final answer
    x = 10,491.10

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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.