Home / 6,808.14-9,386.55-5,547.78

Finding the Fourth Proportional to 6,808.14, 9,386.55 and 5,547.78

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Solution

The fourth proportional to 6,808.14, 9,386.55 and 5,547.78 is: 7,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,808.14 : 9,386.55 = 5,547.78 : x
  2. Step 2: Convert to fraction form
    6,808.14/9,386.55 = 5,547.78/x
  3. Step 3: Cross multiply
    6,808.14x = 9,386.55 × 5,547.78
  4. Step 4: Simplify right side
    6,808.14x = 52,074,514.36
  5. Step 5: Solve for x
    x = 52,074,514.36/6,808.14
  6. Step 6: Final answer
    x = 7,648.86

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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.