Home / 18,675.04-28,017.42-8,284.36

Finding the Fourth Proportional to 18,675.04, 28,017.42 and 8,284.36

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Solution

The fourth proportional to 18,675.04, 28,017.42 and 8,284.36 is: 12,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.04 : 28,017.42 = 8,284.36 : x
  2. Step 2: Convert to fraction form
    18,675.04/28,017.42 = 8,284.36/x
  3. Step 3: Cross multiply
    18,675.04x = 28,017.42 × 8,284.36
  4. Step 4: Simplify right side
    18,675.04x = 232,106,393.55
  5. Step 5: Solve for x
    x = 232,106,393.55/18,675.04
  6. Step 6: Final answer
    x = 12,428.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.