Home / 13,178.90-19,757.12-4,854.74

Finding the Fourth Proportional to 13,178.90, 19,757.12 and 4,854.74

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Solution

The fourth proportional to 13,178.90, 19,757.12 and 4,854.74 is: 7,277.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.90 : 19,757.12 = 4,854.74 : x
  2. Step 2: Convert to fraction form
    13,178.90/19,757.12 = 4,854.74/x
  3. Step 3: Cross multiply
    13,178.90x = 19,757.12 × 4,854.74
  4. Step 4: Simplify right side
    13,178.90x = 95,915,557.69
  5. Step 5: Solve for x
    x = 95,915,557.69/13,178.90
  6. Step 6: Final answer
    x = 7,277.96

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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.