Home / 12,702.12-19,057.32-6,129.06

Finding the Fourth Proportional to 12,702.12, 19,057.32 and 6,129.06

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Solution

The fourth proportional to 12,702.12, 19,057.32 and 6,129.06 is: 9,195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.12 : 19,057.32 = 6,129.06 : x
  2. Step 2: Convert to fraction form
    12,702.12/19,057.32 = 6,129.06/x
  3. Step 3: Cross multiply
    12,702.12x = 19,057.32 × 6,129.06
  4. Step 4: Simplify right side
    12,702.12x = 116,803,457.72
  5. Step 5: Solve for x
    x = 116,803,457.72/12,702.12
  6. Step 6: Final answer
    x = 9,195.59

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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.