Home / 18,528.21-25,569-10,144.71

Finding the Fourth Proportional to 18,528.21, 25,569 and 10,144.71

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Solution

The fourth proportional to 18,528.21, 25,569 and 10,144.71 is: 13,999.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.21 : 25,569 = 10,144.71 : x
  2. Step 2: Convert to fraction form
    18,528.21/25,569 = 10,144.71/x
  3. Step 3: Cross multiply
    18,528.21x = 25,569 × 10,144.71
  4. Step 4: Simplify right side
    18,528.21x = 259,390,089.99
  5. Step 5: Solve for x
    x = 259,390,089.99/18,528.21
  6. Step 6: Final answer
    x = 13,999.74

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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.