Home / 8,714.45-12,026.58-5,129.60

Finding the Fourth Proportional to 8,714.45, 12,026.58 and 5,129.60

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Solution

The fourth proportional to 8,714.45, 12,026.58 and 5,129.60 is: 7,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.45 : 12,026.58 = 5,129.60 : x
  2. Step 2: Convert to fraction form
    8,714.45/12,026.58 = 5,129.60/x
  3. Step 3: Cross multiply
    8,714.45x = 12,026.58 × 5,129.60
  4. Step 4: Simplify right side
    8,714.45x = 61,691,465.40
  5. Step 5: Solve for x
    x = 61,691,465.40/8,714.45
  6. Step 6: Final answer
    x = 7,079.21

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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.