Home / 12,598.78-18,891.96-4,275.76

Finding the Fourth Proportional to 12,598.78, 18,891.96 and 4,275.76

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Solution

The fourth proportional to 12,598.78, 18,891.96 and 4,275.76 is: 6,411.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598.78 : 18,891.96 = 4,275.76 : x
  2. Step 2: Convert to fraction form
    12,598.78/18,891.96 = 4,275.76/x
  3. Step 3: Cross multiply
    12,598.78x = 18,891.96 × 4,275.76
  4. Step 4: Simplify right side
    12,598.78x = 80,777,486.89
  5. Step 5: Solve for x
    x = 80,777,486.89/12,598.78
  6. Step 6: Final answer
    x = 6,411.53

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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.