Home / 18,486.04-25,511.10-10,102.84

Finding the Fourth Proportional to 18,486.04, 25,511.10 and 10,102.84

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Solution

The fourth proportional to 18,486.04, 25,511.10 and 10,102.84 is: 13,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.04 : 25,511.10 = 10,102.84 : x
  2. Step 2: Convert to fraction form
    18,486.04/25,511.10 = 10,102.84/x
  3. Step 3: Cross multiply
    18,486.04x = 25,511.10 × 10,102.84
  4. Step 4: Simplify right side
    18,486.04x = 257,734,561.52
  5. Step 5: Solve for x
    x = 257,734,561.52/18,486.04
  6. Step 6: Final answer
    x = 13,942.12

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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.