Home / 7,228.38-10,779.86-6,528.54

Finding the Fourth Proportional to 7,228.38, 10,779.86 and 6,528.54

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Solution

The fourth proportional to 7,228.38, 10,779.86 and 6,528.54 is: 9,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.38 : 10,779.86 = 6,528.54 : x
  2. Step 2: Convert to fraction form
    7,228.38/10,779.86 = 6,528.54/x
  3. Step 3: Cross multiply
    7,228.38x = 10,779.86 × 6,528.54
  4. Step 4: Simplify right side
    7,228.38x = 70,376,714.56
  5. Step 5: Solve for x
    x = 70,376,714.56/7,228.38
  6. Step 6: Final answer
    x = 9,736.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.