Home / 12,215.38-16,858.03-6,838.32

Finding the Fourth Proportional to 12,215.38, 16,858.03 and 6,838.32

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Solution

The fourth proportional to 12,215.38, 16,858.03 and 6,838.32 is: 9,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.38 : 16,858.03 = 6,838.32 : x
  2. Step 2: Convert to fraction form
    12,215.38/16,858.03 = 6,838.32/x
  3. Step 3: Cross multiply
    12,215.38x = 16,858.03 × 6,838.32
  4. Step 4: Simplify right side
    12,215.38x = 115,280,603.71
  5. Step 5: Solve for x
    x = 115,280,603.71/12,215.38
  6. Step 6: Final answer
    x = 9,437.33

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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.