Home / 13,348.17-18,421.27-7,682.79

Finding the Fourth Proportional to 13,348.17, 18,421.27 and 7,682.79

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Solution

The fourth proportional to 13,348.17, 18,421.27 and 7,682.79 is: 10,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.17 : 18,421.27 = 7,682.79 : x
  2. Step 2: Convert to fraction form
    13,348.17/18,421.27 = 7,682.79/x
  3. Step 3: Cross multiply
    13,348.17x = 18,421.27 × 7,682.79
  4. Step 4: Simplify right side
    13,348.17x = 141,526,756.58
  5. Step 5: Solve for x
    x = 141,526,756.58/13,348.17
  6. Step 6: Final answer
    x = 10,602.71

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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.