Home / 13,234.32-18,261.96-7,929.36

Finding the Fourth Proportional to 13,234.32, 18,261.96 and 7,929.36

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Solution

The fourth proportional to 13,234.32, 18,261.96 and 7,929.36 is: 10,941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.32 : 18,261.96 = 7,929.36 : x
  2. Step 2: Convert to fraction form
    13,234.32/18,261.96 = 7,929.36/x
  3. Step 3: Cross multiply
    13,234.32x = 18,261.96 × 7,929.36
  4. Step 4: Simplify right side
    13,234.32x = 144,805,655.15
  5. Step 5: Solve for x
    x = 144,805,655.15/13,234.32
  6. Step 6: Final answer
    x = 10,941.68

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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.