Home / 13,812.28-20,715.51-4,453.14

Finding the Fourth Proportional to 13,812.28, 20,715.51 and 4,453.14

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Solution

The fourth proportional to 13,812.28, 20,715.51 and 4,453.14 is: 6,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.28 : 20,715.51 = 4,453.14 : x
  2. Step 2: Convert to fraction form
    13,812.28/20,715.51 = 4,453.14/x
  3. Step 3: Cross multiply
    13,812.28x = 20,715.51 × 4,453.14
  4. Step 4: Simplify right side
    13,812.28x = 92,249,066.20
  5. Step 5: Solve for x
    x = 92,249,066.20/13,812.28
  6. Step 6: Final answer
    x = 6,678.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.