Home / 13,272.98-18,315.77-7,895.12

Finding the Fourth Proportional to 13,272.98, 18,315.77 and 7,895.12

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Solution

The fourth proportional to 13,272.98, 18,315.77 and 7,895.12 is: 10,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.98 : 18,315.77 = 7,895.12 : x
  2. Step 2: Convert to fraction form
    13,272.98/18,315.77 = 7,895.12/x
  3. Step 3: Cross multiply
    13,272.98x = 18,315.77 × 7,895.12
  4. Step 4: Simplify right side
    13,272.98x = 144,605,202.04
  5. Step 5: Solve for x
    x = 144,605,202.04/13,272.98
  6. Step 6: Final answer
    x = 10,894.71

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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.