Home / 12,703.88-17,531.32-7,038.62

Finding the Fourth Proportional to 12,703.88, 17,531.32 and 7,038.62

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Solution

The fourth proportional to 12,703.88, 17,531.32 and 7,038.62 is: 9,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.88 : 17,531.32 = 7,038.62 : x
  2. Step 2: Convert to fraction form
    12,703.88/17,531.32 = 7,038.62/x
  3. Step 3: Cross multiply
    12,703.88x = 17,531.32 × 7,038.62
  4. Step 4: Simplify right side
    12,703.88x = 123,396,299.58
  5. Step 5: Solve for x
    x = 123,396,299.58/12,703.88
  6. Step 6: Final answer
    x = 9,713.28

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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.