Home / 12,852.76-19,278.78-4,088.20

Finding the Fourth Proportional to 12,852.76, 19,278.78 and 4,088.20

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Solution

The fourth proportional to 12,852.76, 19,278.78 and 4,088.20 is: 6,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.76 : 19,278.78 = 4,088.20 : x
  2. Step 2: Convert to fraction form
    12,852.76/19,278.78 = 4,088.20/x
  3. Step 3: Cross multiply
    12,852.76x = 19,278.78 × 4,088.20
  4. Step 4: Simplify right side
    12,852.76x = 78,815,508.40
  5. Step 5: Solve for x
    x = 78,815,508.40/12,852.76
  6. Step 6: Final answer
    x = 6,132.19

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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.