Home / 13,889.88-19,168.43-7,602.66

Finding the Fourth Proportional to 13,889.88, 19,168.43 and 7,602.66

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Solution

The fourth proportional to 13,889.88, 19,168.43 and 7,602.66 is: 10,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.88 : 19,168.43 = 7,602.66 : x
  2. Step 2: Convert to fraction form
    13,889.88/19,168.43 = 7,602.66/x
  3. Step 3: Cross multiply
    13,889.88x = 19,168.43 × 7,602.66
  4. Step 4: Simplify right side
    13,889.88x = 145,731,056.02
  5. Step 5: Solve for x
    x = 145,731,056.02/13,889.88
  6. Step 6: Final answer
    x = 10,491.89

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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.