Home / 13,827.36-19,081.74-7,539.75

Finding the Fourth Proportional to 13,827.36, 19,081.74 and 7,539.75

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Solution

The fourth proportional to 13,827.36, 19,081.74 and 7,539.75 is: 10,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.36 : 19,081.74 = 7,539.75 : x
  2. Step 2: Convert to fraction form
    13,827.36/19,081.74 = 7,539.75/x
  3. Step 3: Cross multiply
    13,827.36x = 19,081.74 × 7,539.75
  4. Step 4: Simplify right side
    13,827.36x = 143,871,549.17
  5. Step 5: Solve for x
    x = 143,871,549.17/13,827.36
  6. Step 6: Final answer
    x = 10,404.85

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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.