Home / 13,329.04-18,385.86-10,682.76

Finding the Fourth Proportional to 13,329.04, 18,385.86 and 10,682.76

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Solution

The fourth proportional to 13,329.04, 18,385.86 and 10,682.76 is: 14,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.04 : 18,385.86 = 10,682.76 : x
  2. Step 2: Convert to fraction form
    13,329.04/18,385.86 = 10,682.76/x
  3. Step 3: Cross multiply
    13,329.04x = 18,385.86 × 10,682.76
  4. Step 4: Simplify right side
    13,329.04x = 196,411,729.77
  5. Step 5: Solve for x
    x = 196,411,729.77/13,329.04
  6. Step 6: Final answer
    x = 14,735.62

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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.