Home / 12,820.48-19,230.72-6,582.40

Finding the Fourth Proportional to 12,820.48, 19,230.72 and 6,582.40

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Solution

The fourth proportional to 12,820.48, 19,230.72 and 6,582.40 is: 9,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820.48 : 19,230.72 = 6,582.40 : x
  2. Step 2: Convert to fraction form
    12,820.48/19,230.72 = 6,582.40/x
  3. Step 3: Cross multiply
    12,820.48x = 19,230.72 × 6,582.40
  4. Step 4: Simplify right side
    12,820.48x = 126,584,291.33
  5. Step 5: Solve for x
    x = 126,584,291.33/12,820.48
  6. Step 6: Final answer
    x = 9,873.60

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Double scale
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Similar ratio
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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.