Home / 12,455.07-18,714.90-9,364.22

Finding the Fourth Proportional to 12,455.07, 18,714.90 and 9,364.22

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Solution

The fourth proportional to 12,455.07, 18,714.90 and 9,364.22 is: 14,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.07 : 18,714.90 = 9,364.22 : x
  2. Step 2: Convert to fraction form
    12,455.07/18,714.90 = 9,364.22/x
  3. Step 3: Cross multiply
    12,455.07x = 18,714.90 × 9,364.22
  4. Step 4: Simplify right side
    12,455.07x = 175,250,347.30
  5. Step 5: Solve for x
    x = 175,250,347.30/12,455.07
  6. Step 6: Final answer
    x = 14,070.60

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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.