Home / 14,689.48-20,272.26-8,402.92

Finding the Fourth Proportional to 14,689.48, 20,272.26 and 8,402.92

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Solution

The fourth proportional to 14,689.48, 20,272.26 and 8,402.92 is: 11,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.48 : 20,272.26 = 8,402.92 : x
  2. Step 2: Convert to fraction form
    14,689.48/20,272.26 = 8,402.92/x
  3. Step 3: Cross multiply
    14,689.48x = 20,272.26 × 8,402.92
  4. Step 4: Simplify right side
    14,689.48x = 170,346,179.00
  5. Step 5: Solve for x
    x = 170,346,179.00/14,689.48
  6. Step 6: Final answer
    x = 11,596.47

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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.