Home / 12,384.62-18,559.49-5,359.22

Finding the Fourth Proportional to 12,384.62, 18,559.49 and 5,359.22

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Solution

The fourth proportional to 12,384.62, 18,559.49 and 5,359.22 is: 8,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384.62 : 18,559.49 = 5,359.22 : x
  2. Step 2: Convert to fraction form
    12,384.62/18,559.49 = 5,359.22/x
  3. Step 3: Cross multiply
    12,384.62x = 18,559.49 × 5,359.22
  4. Step 4: Simplify right side
    12,384.62x = 99,464,270.40
  5. Step 5: Solve for x
    x = 99,464,270.40/12,384.62
  6. Step 6: Final answer
    x = 8,031.28

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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.