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Finding the Fourth Proportional to 8,038.71, 12,001.43 and 6,942.51

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Solution

The fourth proportional to 8,038.71, 12,001.43 and 6,942.51 is: 10,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,038.71 : 12,001.43 = 6,942.51 : x
  2. Step 2: Convert to fraction form
    8,038.71/12,001.43 = 6,942.51/x
  3. Step 3: Cross multiply
    8,038.71x = 12,001.43 × 6,942.51
  4. Step 4: Simplify right side
    8,038.71x = 83,320,065.15
  5. Step 5: Solve for x
    x = 83,320,065.15/8,038.71
  6. Step 6: Final answer
    x = 10,364.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.