Home / 12,771.31-19,154.33-4,872.05

Finding the Fourth Proportional to 12,771.31, 19,154.33 and 4,872.05

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Solution

The fourth proportional to 12,771.31, 19,154.33 and 4,872.05 is: 7,307.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.31 : 19,154.33 = 4,872.05 : x
  2. Step 2: Convert to fraction form
    12,771.31/19,154.33 = 4,872.05/x
  3. Step 3: Cross multiply
    12,771.31x = 19,154.33 × 4,872.05
  4. Step 4: Simplify right side
    12,771.31x = 93,320,841.71
  5. Step 5: Solve for x
    x = 93,320,841.71/12,771.31
  6. Step 6: Final answer
    x = 7,307.07

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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.