Home / 13,560.04-18,714.70-8,182.74

Finding the Fourth Proportional to 13,560.04, 18,714.70 and 8,182.74

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Solution

The fourth proportional to 13,560.04, 18,714.70 and 8,182.74 is: 11,293.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.04 : 18,714.70 = 8,182.74 : x
  2. Step 2: Convert to fraction form
    13,560.04/18,714.70 = 8,182.74/x
  3. Step 3: Cross multiply
    13,560.04x = 18,714.70 × 8,182.74
  4. Step 4: Simplify right side
    13,560.04x = 153,137,524.28
  5. Step 5: Solve for x
    x = 153,137,524.28/13,560.04
  6. Step 6: Final answer
    x = 11,293.29

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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.