Home / 13,216.30-18,235.84-7,552.90

Finding the Fourth Proportional to 13,216.30, 18,235.84 and 7,552.90

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Solution

The fourth proportional to 13,216.30, 18,235.84 and 7,552.90 is: 10,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.30 : 18,235.84 = 7,552.90 : x
  2. Step 2: Convert to fraction form
    13,216.30/18,235.84 = 7,552.90/x
  3. Step 3: Cross multiply
    13,216.30x = 18,235.84 × 7,552.90
  4. Step 4: Simplify right side
    13,216.30x = 137,733,566.54
  5. Step 5: Solve for x
    x = 137,733,566.54/13,216.30
  6. Step 6: Final answer
    x = 10,421.49

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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.