Home / 13,563.57-18,698.45-9,972.18

Finding the Fourth Proportional to 13,563.57, 18,698.45 and 9,972.18

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Solution

The fourth proportional to 13,563.57, 18,698.45 and 9,972.18 is: 13,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.57 : 18,698.45 = 9,972.18 : x
  2. Step 2: Convert to fraction form
    13,563.57/18,698.45 = 9,972.18/x
  3. Step 3: Cross multiply
    13,563.57x = 18,698.45 × 9,972.18
  4. Step 4: Simplify right side
    13,563.57x = 186,464,309.12
  5. Step 5: Solve for x
    x = 186,464,309.12/13,563.57
  6. Step 6: Final answer
    x = 13,747.44

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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.