Home / 12,784.82-19,164.83-6,547.77

Finding the Fourth Proportional to 12,784.82, 19,164.83 and 6,547.77

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Solution

The fourth proportional to 12,784.82, 19,164.83 and 6,547.77 is: 9,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.82 : 19,164.83 = 6,547.77 : x
  2. Step 2: Convert to fraction form
    12,784.82/19,164.83 = 6,547.77/x
  3. Step 3: Cross multiply
    12,784.82x = 19,164.83 × 6,547.77
  4. Step 4: Simplify right side
    12,784.82x = 125,486,866.19
  5. Step 5: Solve for x
    x = 125,486,866.19/12,784.82
  6. Step 6: Final answer
    x = 9,815.31

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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.