Home / 13,785.04-19,016.58-9,002.80

Finding the Fourth Proportional to 13,785.04, 19,016.58 and 9,002.80

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Solution

The fourth proportional to 13,785.04, 19,016.58 and 9,002.80 is: 12,419.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.04 : 19,016.58 = 9,002.80 : x
  2. Step 2: Convert to fraction form
    13,785.04/19,016.58 = 9,002.80/x
  3. Step 3: Cross multiply
    13,785.04x = 19,016.58 × 9,002.80
  4. Step 4: Simplify right side
    13,785.04x = 171,202,466.42
  5. Step 5: Solve for x
    x = 171,202,466.42/13,785.04
  6. Step 6: Final answer
    x = 12,419.44

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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.