Home / 12,465.88-17,202.90-7,160.58

Finding the Fourth Proportional to 12,465.88, 17,202.90 and 7,160.58

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Solution

The fourth proportional to 12,465.88, 17,202.90 and 7,160.58 is: 9,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.88 : 17,202.90 = 7,160.58 : x
  2. Step 2: Convert to fraction form
    12,465.88/17,202.90 = 7,160.58/x
  3. Step 3: Cross multiply
    12,465.88x = 17,202.90 × 7,160.58
  4. Step 4: Simplify right side
    12,465.88x = 123,182,741.68
  5. Step 5: Solve for x
    x = 123,182,741.68/12,465.88
  6. Step 6: Final answer
    x = 9,881.59

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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.