Home / 15,175.88-20,930.58-10,459.08

Finding the Fourth Proportional to 15,175.88, 20,930.58 and 10,459.08

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Solution

The fourth proportional to 15,175.88, 20,930.58 and 10,459.08 is: 14,425.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.88 : 20,930.58 = 10,459.08 : x
  2. Step 2: Convert to fraction form
    15,175.88/20,930.58 = 10,459.08/x
  3. Step 3: Cross multiply
    15,175.88x = 20,930.58 × 10,459.08
  4. Step 4: Simplify right side
    15,175.88x = 218,914,610.67
  5. Step 5: Solve for x
    x = 218,914,610.67/15,175.88
  6. Step 6: Final answer
    x = 14,425.17

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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.