Home / 13,191.63-19,787.69-4,306.94

Finding the Fourth Proportional to 13,191.63, 19,787.69 and 4,306.94

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Solution

The fourth proportional to 13,191.63, 19,787.69 and 4,306.94 is: 6,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.63 : 19,787.69 = 4,306.94 : x
  2. Step 2: Convert to fraction form
    13,191.63/19,787.69 = 4,306.94/x
  3. Step 3: Cross multiply
    13,191.63x = 19,787.69 × 4,306.94
  4. Step 4: Simplify right side
    13,191.63x = 85,224,379.60
  5. Step 5: Solve for x
    x = 85,224,379.60/13,191.63
  6. Step 6: Final answer
    x = 6,460.49

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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.