Home / 12,904.19-19,356.23-8,520.60

Finding the Fourth Proportional to 12,904.19, 19,356.23 and 8,520.60

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Solution

The fourth proportional to 12,904.19, 19,356.23 and 8,520.60 is: 12,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.19 : 19,356.23 = 8,520.60 : x
  2. Step 2: Convert to fraction form
    12,904.19/19,356.23 = 8,520.60/x
  3. Step 3: Cross multiply
    12,904.19x = 19,356.23 × 8,520.60
  4. Step 4: Simplify right side
    12,904.19x = 164,926,714.64
  5. Step 5: Solve for x
    x = 164,926,714.64/12,904.19
  6. Step 6: Final answer
    x = 12,780.87

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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.