Home / 18,528.71-25,569.69-10,145.21

Finding the Fourth Proportional to 18,528.71, 25,569.69 and 10,145.21

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Solution

The fourth proportional to 18,528.71, 25,569.69 and 10,145.21 is: 14,000.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.71 : 25,569.69 = 10,145.21 : x
  2. Step 2: Convert to fraction form
    18,528.71/25,569.69 = 10,145.21/x
  3. Step 3: Cross multiply
    18,528.71x = 25,569.69 × 10,145.21
  4. Step 4: Simplify right side
    18,528.71x = 259,409,874.68
  5. Step 5: Solve for x
    x = 259,409,874.68/18,528.71
  6. Step 6: Final answer
    x = 14,000.43

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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.