Home / 12,682.10-18,989.12-10,332.50

Finding the Fourth Proportional to 12,682.10, 18,989.12 and 10,332.50

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Solution

The fourth proportional to 12,682.10, 18,989.12 and 10,332.50 is: 15,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.10 : 18,989.12 = 10,332.50 : x
  2. Step 2: Convert to fraction form
    12,682.10/18,989.12 = 10,332.50/x
  3. Step 3: Cross multiply
    12,682.10x = 18,989.12 × 10,332.50
  4. Step 4: Simplify right side
    12,682.10x = 196,205,013.29
  5. Step 5: Solve for x
    x = 196,205,013.29/12,682.10
  6. Step 6: Final answer
    x = 15,471.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.