Home / 13,895.53-19,175.77-9,180.79

Finding the Fourth Proportional to 13,895.53, 19,175.77 and 9,180.79

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Solution

The fourth proportional to 13,895.53, 19,175.77 and 9,180.79 is: 12,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.53 : 19,175.77 = 9,180.79 : x
  2. Step 2: Convert to fraction form
    13,895.53/19,175.77 = 9,180.79/x
  3. Step 3: Cross multiply
    13,895.53x = 19,175.77 × 9,180.79
  4. Step 4: Simplify right side
    13,895.53x = 176,048,717.46
  5. Step 5: Solve for x
    x = 176,048,717.46/13,895.53
  6. Step 6: Final answer
    x = 12,669.45

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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.