Home / 13,599.85-18,768.12-7,631.97

Finding the Fourth Proportional to 13,599.85, 18,768.12 and 7,631.97

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Solution

The fourth proportional to 13,599.85, 18,768.12 and 7,631.97 is: 10,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.85 : 18,768.12 = 7,631.97 : x
  2. Step 2: Convert to fraction form
    13,599.85/18,768.12 = 7,631.97/x
  3. Step 3: Cross multiply
    13,599.85x = 18,768.12 × 7,631.97
  4. Step 4: Simplify right side
    13,599.85x = 143,237,728.80
  5. Step 5: Solve for x
    x = 143,237,728.80/13,599.85
  6. Step 6: Final answer
    x = 10,532.30

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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.