Home / 18,578.79-25,638.66-10,080.95

Finding the Fourth Proportional to 18,578.79, 25,638.66 and 10,080.95

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Solution

The fourth proportional to 18,578.79, 25,638.66 and 10,080.95 is: 13,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.79 : 25,638.66 = 10,080.95 : x
  2. Step 2: Convert to fraction form
    18,578.79/25,638.66 = 10,080.95/x
  3. Step 3: Cross multiply
    18,578.79x = 25,638.66 × 10,080.95
  4. Step 4: Simplify right side
    18,578.79x = 258,461,921.33
  5. Step 5: Solve for x
    x = 258,461,921.33/18,578.79
  6. Step 6: Final answer
    x = 13,911.67

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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.