Home / 12,714.20-19,088.40-7,454.60

Finding the Fourth Proportional to 12,714.20, 19,088.40 and 7,454.60

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Solution

The fourth proportional to 12,714.20, 19,088.40 and 7,454.60 is: 11,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714.20 : 19,088.40 = 7,454.60 : x
  2. Step 2: Convert to fraction form
    12,714.20/19,088.40 = 7,454.60/x
  3. Step 3: Cross multiply
    12,714.20x = 19,088.40 × 7,454.60
  4. Step 4: Simplify right side
    12,714.20x = 142,296,386.64
  5. Step 5: Solve for x
    x = 142,296,386.64/12,714.20
  6. Step 6: Final answer
    x = 11,191.93

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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.