Home / 13,610.40-18,785.28-8,304.08

Finding the Fourth Proportional to 13,610.40, 18,785.28 and 8,304.08

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Solution

The fourth proportional to 13,610.40, 18,785.28 and 8,304.08 is: 11,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.40 : 18,785.28 = 8,304.08 : x
  2. Step 2: Convert to fraction form
    13,610.40/18,785.28 = 8,304.08/x
  3. Step 3: Cross multiply
    13,610.40x = 18,785.28 × 8,304.08
  4. Step 4: Simplify right side
    13,610.40x = 155,994,467.94
  5. Step 5: Solve for x
    x = 155,994,467.94/13,610.40
  6. Step 6: Final answer
    x = 11,461.42

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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.