Home / 12,807.12-19,194.52-6,869.28

Finding the Fourth Proportional to 12,807.12, 19,194.52 and 6,869.28

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Solution

The fourth proportional to 12,807.12, 19,194.52 and 6,869.28 is: 10,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.12 : 19,194.52 = 6,869.28 : x
  2. Step 2: Convert to fraction form
    12,807.12/19,194.52 = 6,869.28/x
  3. Step 3: Cross multiply
    12,807.12x = 19,194.52 × 6,869.28
  4. Step 4: Simplify right side
    12,807.12x = 131,852,532.35
  5. Step 5: Solve for x
    x = 131,852,532.35/12,807.12
  6. Step 6: Final answer
    x = 10,295.25

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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.