Home / 13,682.30-18,888.52-8,651.68

Finding the Fourth Proportional to 13,682.30, 18,888.52 and 8,651.68

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Solution

The fourth proportional to 13,682.30, 18,888.52 and 8,651.68 is: 11,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682.30 : 18,888.52 = 8,651.68 : x
  2. Step 2: Convert to fraction form
    13,682.30/18,888.52 = 8,651.68/x
  3. Step 3: Cross multiply
    13,682.30x = 18,888.52 × 8,651.68
  4. Step 4: Simplify right side
    13,682.30x = 163,417,430.71
  5. Step 5: Solve for x
    x = 163,417,430.71/13,682.30
  6. Step 6: Final answer
    x = 11,943.71

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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.