Home / 12,845.43-17,725.77-7,539.53

Finding the Fourth Proportional to 12,845.43, 17,725.77 and 7,539.53

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Solution

The fourth proportional to 12,845.43, 17,725.77 and 7,539.53 is: 10,404.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.43 : 17,725.77 = 7,539.53 : x
  2. Step 2: Convert to fraction form
    12,845.43/17,725.77 = 7,539.53/x
  3. Step 3: Cross multiply
    12,845.43x = 17,725.77 × 7,539.53
  4. Step 4: Simplify right side
    12,845.43x = 133,643,886.06
  5. Step 5: Solve for x
    x = 133,643,886.06/12,845.43
  6. Step 6: Final answer
    x = 10,404.00

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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.