Home / 18,677.30-28,015.88-5,528.63

Finding the Fourth Proportional to 18,677.30, 28,015.88 and 5,528.63

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Solution

The fourth proportional to 18,677.30, 28,015.88 and 5,528.63 is: 8,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.30 : 28,015.88 = 5,528.63 : x
  2. Step 2: Convert to fraction form
    18,677.30/28,015.88 = 5,528.63/x
  3. Step 3: Cross multiply
    18,677.30x = 28,015.88 × 5,528.63
  4. Step 4: Simplify right side
    18,677.30x = 154,889,477.04
  5. Step 5: Solve for x
    x = 154,889,477.04/18,677.30
  6. Step 6: Final answer
    x = 8,292.93

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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.