Home / 13,108.79-19,666.29-5,714.57

Finding the Fourth Proportional to 13,108.79, 19,666.29 and 5,714.57

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Solution

The fourth proportional to 13,108.79, 19,666.29 and 5,714.57 is: 8,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.79 : 19,666.29 = 5,714.57 : x
  2. Step 2: Convert to fraction form
    13,108.79/19,666.29 = 5,714.57/x
  3. Step 3: Cross multiply
    13,108.79x = 19,666.29 × 5,714.57
  4. Step 4: Simplify right side
    13,108.79x = 112,384,390.85
  5. Step 5: Solve for x
    x = 112,384,390.85/13,108.79
  6. Step 6: Final answer
    x = 8,573.21

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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.