Home / 12,739.16-19,068.69-8,042.92

Finding the Fourth Proportional to 12,739.16, 19,068.69 and 8,042.92

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Solution

The fourth proportional to 12,739.16, 19,068.69 and 8,042.92 is: 12,039.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.16 : 19,068.69 = 8,042.92 : x
  2. Step 2: Convert to fraction form
    12,739.16/19,068.69 = 8,042.92/x
  3. Step 3: Cross multiply
    12,739.16x = 19,068.69 × 8,042.92
  4. Step 4: Simplify right side
    12,739.16x = 153,367,948.17
  5. Step 5: Solve for x
    x = 153,367,948.17/12,739.16
  6. Step 6: Final answer
    x = 12,039.09

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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.