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Finding the Fourth Proportional to 13,598.77, 18,766.32 and 7,630.48

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Solution

The fourth proportional to 13,598.77, 18,766.32 and 7,630.48 is: 10,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.77 : 18,766.32 = 7,630.48 : x
  2. Step 2: Convert to fraction form
    13,598.77/18,766.32 = 7,630.48/x
  3. Step 3: Cross multiply
    13,598.77x = 18,766.32 × 7,630.48
  4. Step 4: Simplify right side
    13,598.77x = 143,195,991.28
  5. Step 5: Solve for x
    x = 143,195,991.28/13,598.77
  6. Step 6: Final answer
    x = 10,530.07

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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.