Home / 14,654.88-20,228.22-12,686.58

Finding the Fourth Proportional to 14,654.88, 20,228.22 and 12,686.58

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Solution

The fourth proportional to 14,654.88, 20,228.22 and 12,686.58 is: 17,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,654.88 : 20,228.22 = 12,686.58 : x
  2. Step 2: Convert to fraction form
    14,654.88/20,228.22 = 12,686.58/x
  3. Step 3: Cross multiply
    14,654.88x = 20,228.22 × 12,686.58
  4. Step 4: Simplify right side
    14,654.88x = 256,626,931.29
  5. Step 5: Solve for x
    x = 256,626,931.29/14,654.88
  6. Step 6: Final answer
    x = 17,511.36

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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.