Home / 18,206.40-27,305.76-6,520.32

Finding the Fourth Proportional to 18,206.40, 27,305.76 and 6,520.32

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Solution

The fourth proportional to 18,206.40, 27,305.76 and 6,520.32 is: 9,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.40 : 27,305.76 = 6,520.32 : x
  2. Step 2: Convert to fraction form
    18,206.40/27,305.76 = 6,520.32/x
  3. Step 3: Cross multiply
    18,206.40x = 27,305.76 × 6,520.32
  4. Step 4: Simplify right side
    18,206.40x = 178,042,293.04
  5. Step 5: Solve for x
    x = 178,042,293.04/18,206.40
  6. Step 6: Final answer
    x = 9,779.10

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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.