Home / 13,862.42-19,132.30-8,828.81

Finding the Fourth Proportional to 13,862.42, 19,132.30 and 8,828.81

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Solution

The fourth proportional to 13,862.42, 19,132.30 and 8,828.81 is: 12,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.42 : 19,132.30 = 8,828.81 : x
  2. Step 2: Convert to fraction form
    13,862.42/19,132.30 = 8,828.81/x
  3. Step 3: Cross multiply
    13,862.42x = 19,132.30 × 8,828.81
  4. Step 4: Simplify right side
    13,862.42x = 168,915,441.56
  5. Step 5: Solve for x
    x = 168,915,441.56/13,862.42
  6. Step 6: Final answer
    x = 12,185.13

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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.