Home / 13,443.28-20,164.92-4,210

Finding the Fourth Proportional to 13,443.28, 20,164.92 and 4,210

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Solution

The fourth proportional to 13,443.28, 20,164.92 and 4,210 is: 6,315.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.28 : 20,164.92 = 4,210 : x
  2. Step 2: Convert to fraction form
    13,443.28/20,164.92 = 4,210/x
  3. Step 3: Cross multiply
    13,443.28x = 20,164.92 × 4,210
  4. Step 4: Simplify right side
    13,443.28x = 84,894,313.20
  5. Step 5: Solve for x
    x = 84,894,313.20/13,443.28
  6. Step 6: Final answer
    x = 6,315.00

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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.