Home / 13,892.20-19,170.48-7,603.36

Finding the Fourth Proportional to 13,892.20, 19,170.48 and 7,603.36

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Solution

The fourth proportional to 13,892.20, 19,170.48 and 7,603.36 is: 10,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.20 : 19,170.48 = 7,603.36 : x
  2. Step 2: Convert to fraction form
    13,892.20/19,170.48 = 7,603.36/x
  3. Step 3: Cross multiply
    13,892.20x = 19,170.48 × 7,603.36
  4. Step 4: Simplify right side
    13,892.20x = 145,760,060.81
  5. Step 5: Solve for x
    x = 145,760,060.81/13,892.20
  6. Step 6: Final answer
    x = 10,492.22

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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.