Home / 18,486.95-25,511.99-10,103.45

Finding the Fourth Proportional to 18,486.95, 25,511.99 and 10,103.45

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Solution

The fourth proportional to 18,486.95, 25,511.99 and 10,103.45 is: 13,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.95 : 25,511.99 = 10,103.45 : x
  2. Step 2: Convert to fraction form
    18,486.95/25,511.99 = 10,103.45/x
  3. Step 3: Cross multiply
    18,486.95x = 25,511.99 × 10,103.45
  4. Step 4: Simplify right side
    18,486.95x = 257,758,937.29
  5. Step 5: Solve for x
    x = 257,758,937.29/18,486.95
  6. Step 6: Final answer
    x = 13,942.75

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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.