Home / 13,289.72-19,935.05-4,523.49

Finding the Fourth Proportional to 13,289.72, 19,935.05 and 4,523.49

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Solution

The fourth proportional to 13,289.72, 19,935.05 and 4,523.49 is: 6,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.72 : 19,935.05 = 4,523.49 : x
  2. Step 2: Convert to fraction form
    13,289.72/19,935.05 = 4,523.49/x
  3. Step 3: Cross multiply
    13,289.72x = 19,935.05 × 4,523.49
  4. Step 4: Simplify right side
    13,289.72x = 90,175,976.71
  5. Step 5: Solve for x
    x = 90,175,976.71/13,289.72
  6. Step 6: Final answer
    x = 6,785.40

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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.