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Finding the Fourth Proportional to 14,090.36, 19,445 and 7,717.22

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Solution

The fourth proportional to 14,090.36, 19,445 and 7,717.22 is: 10,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.36 : 19,445 = 7,717.22 : x
  2. Step 2: Convert to fraction form
    14,090.36/19,445 = 7,717.22/x
  3. Step 3: Cross multiply
    14,090.36x = 19,445 × 7,717.22
  4. Step 4: Simplify right side
    14,090.36x = 150,061,342.90
  5. Step 5: Solve for x
    x = 150,061,342.90/14,090.36
  6. Step 6: Final answer
    x = 10,649.93

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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.