Home / 13,977.24-19,287.73-7,603.78

Finding the Fourth Proportional to 13,977.24, 19,287.73 and 7,603.78

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Solution

The fourth proportional to 13,977.24, 19,287.73 and 7,603.78 is: 10,492.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.24 : 19,287.73 = 7,603.78 : x
  2. Step 2: Convert to fraction form
    13,977.24/19,287.73 = 7,603.78/x
  3. Step 3: Cross multiply
    13,977.24x = 19,287.73 × 7,603.78
  4. Step 4: Simplify right side
    13,977.24x = 146,659,655.62
  5. Step 5: Solve for x
    x = 146,659,655.62/13,977.24
  6. Step 6: Final answer
    x = 10,492.75

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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.