Home / 13,175.73-18,182.07-7,867.40

Finding the Fourth Proportional to 13,175.73, 18,182.07 and 7,867.40

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Solution

The fourth proportional to 13,175.73, 18,182.07 and 7,867.40 is: 10,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.73 : 18,182.07 = 7,867.40 : x
  2. Step 2: Convert to fraction form
    13,175.73/18,182.07 = 7,867.40/x
  3. Step 3: Cross multiply
    13,175.73x = 18,182.07 × 7,867.40
  4. Step 4: Simplify right side
    13,175.73x = 143,045,526.61
  5. Step 5: Solve for x
    x = 143,045,526.61/13,175.73
  6. Step 6: Final answer
    x = 10,856.74

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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.