Home / 14,589.20-20,112.36-10,384.40

Finding the Fourth Proportional to 14,589.20, 20,112.36 and 10,384.40

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Solution

The fourth proportional to 14,589.20, 20,112.36 and 10,384.40 is: 14,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,589.20 : 20,112.36 = 10,384.40 : x
  2. Step 2: Convert to fraction form
    14,589.20/20,112.36 = 10,384.40/x
  3. Step 3: Cross multiply
    14,589.20x = 20,112.36 × 10,384.40
  4. Step 4: Simplify right side
    14,589.20x = 208,854,791.18
  5. Step 5: Solve for x
    x = 208,854,791.18/14,589.20
  6. Step 6: Final answer
    x = 14,315.71

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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.