Home / 18,781.62-25,918.47-10,823.67

Finding the Fourth Proportional to 18,781.62, 25,918.47 and 10,823.67

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Solution

The fourth proportional to 18,781.62, 25,918.47 and 10,823.67 is: 14,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.62 : 25,918.47 = 10,823.67 : x
  2. Step 2: Convert to fraction form
    18,781.62/25,918.47 = 10,823.67/x
  3. Step 3: Cross multiply
    18,781.62x = 25,918.47 × 10,823.67
  4. Step 4: Simplify right side
    18,781.62x = 280,532,966.18
  5. Step 5: Solve for x
    x = 280,532,966.18/18,781.62
  6. Step 6: Final answer
    x = 14,936.57

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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.