Home / 9,174.04-13,785.60-8,031.20

Finding the Fourth Proportional to 9,174.04, 13,785.60 and 8,031.20

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Solution

The fourth proportional to 9,174.04, 13,785.60 and 8,031.20 is: 12,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.04 : 13,785.60 = 8,031.20 : x
  2. Step 2: Convert to fraction form
    9,174.04/13,785.60 = 8,031.20/x
  3. Step 3: Cross multiply
    9,174.04x = 13,785.60 × 8,031.20
  4. Step 4: Simplify right side
    9,174.04x = 110,714,910.72
  5. Step 5: Solve for x
    x = 110,714,910.72/9,174.04
  6. Step 6: Final answer
    x = 12,068.28

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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.