Home / 18,786.29-25,925.12-10,172.55

Finding the Fourth Proportional to 18,786.29, 25,925.12 and 10,172.55

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Solution

The fourth proportional to 18,786.29, 25,925.12 and 10,172.55 is: 14,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.29 : 25,925.12 = 10,172.55 : x
  2. Step 2: Convert to fraction form
    18,786.29/25,925.12 = 10,172.55/x
  3. Step 3: Cross multiply
    18,786.29x = 25,925.12 × 10,172.55
  4. Step 4: Simplify right side
    18,786.29x = 263,724,528.59
  5. Step 5: Solve for x
    x = 263,724,528.59/18,786.29
  6. Step 6: Final answer
    x = 14,038.14

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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.