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Finding the Fourth Proportional to 13,597.60, 18,764.40 and 7,630.72

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Solution

The fourth proportional to 13,597.60, 18,764.40 and 7,630.72 is: 10,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.60 : 18,764.40 = 7,630.72 : x
  2. Step 2: Convert to fraction form
    13,597.60/18,764.40 = 7,630.72/x
  3. Step 3: Cross multiply
    13,597.60x = 18,764.40 × 7,630.72
  4. Step 4: Simplify right side
    13,597.60x = 143,185,882.37
  5. Step 5: Solve for x
    x = 143,185,882.37/13,597.60
  6. Step 6: Final answer
    x = 10,530.23

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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.