Home / 12,840.66-19,260.18-4,521.42

Finding the Fourth Proportional to 12,840.66, 19,260.18 and 4,521.42

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Solution

The fourth proportional to 12,840.66, 19,260.18 and 4,521.42 is: 6,781.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.66 : 19,260.18 = 4,521.42 : x
  2. Step 2: Convert to fraction form
    12,840.66/19,260.18 = 4,521.42/x
  3. Step 3: Cross multiply
    12,840.66x = 19,260.18 × 4,521.42
  4. Step 4: Simplify right side
    12,840.66x = 87,083,363.06
  5. Step 5: Solve for x
    x = 87,083,363.06/12,840.66
  6. Step 6: Final answer
    x = 6,781.84

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Double scale
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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.