Home / 13,081.56-19,619.58-4,314.40

Finding the Fourth Proportional to 13,081.56, 19,619.58 and 4,314.40

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Solution

The fourth proportional to 13,081.56, 19,619.58 and 4,314.40 is: 6,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.56 : 19,619.58 = 4,314.40 : x
  2. Step 2: Convert to fraction form
    13,081.56/19,619.58 = 4,314.40/x
  3. Step 3: Cross multiply
    13,081.56x = 19,619.58 × 4,314.40
  4. Step 4: Simplify right side
    13,081.56x = 84,646,715.95
  5. Step 5: Solve for x
    x = 84,646,715.95/13,081.56
  6. Step 6: Final answer
    x = 6,470.69

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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.