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Finding the Fourth Proportional to 12,710.26, 17,539.58 and 7,045

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Solution

The fourth proportional to 12,710.26, 17,539.58 and 7,045 is: 9,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.26 : 17,539.58 = 7,045 : x
  2. Step 2: Convert to fraction form
    12,710.26/17,539.58 = 7,045/x
  3. Step 3: Cross multiply
    12,710.26x = 17,539.58 × 7,045
  4. Step 4: Simplify right side
    12,710.26x = 123,566,341.10
  5. Step 5: Solve for x
    x = 123,566,341.10/12,710.26
  6. Step 6: Final answer
    x = 9,721.78

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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.