Home / 13,081.78-19,623.90-4,316.78

Finding the Fourth Proportional to 13,081.78, 19,623.90 and 4,316.78

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Solution

The fourth proportional to 13,081.78, 19,623.90 and 4,316.78 is: 6,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.78 : 19,623.90 = 4,316.78 : x
  2. Step 2: Convert to fraction form
    13,081.78/19,623.90 = 4,316.78/x
  3. Step 3: Cross multiply
    13,081.78x = 19,623.90 × 4,316.78
  4. Step 4: Simplify right side
    13,081.78x = 84,712,059.04
  5. Step 5: Solve for x
    x = 84,712,059.04/13,081.78
  6. Step 6: Final answer
    x = 6,475.58

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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.