Home / 13,430.71-20,146.13-4,546.12

Finding the Fourth Proportional to 13,430.71, 20,146.13 and 4,546.12

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Solution

The fourth proportional to 13,430.71, 20,146.13 and 4,546.12 is: 6,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.71 : 20,146.13 = 4,546.12 : x
  2. Step 2: Convert to fraction form
    13,430.71/20,146.13 = 4,546.12/x
  3. Step 3: Cross multiply
    13,430.71x = 20,146.13 × 4,546.12
  4. Step 4: Simplify right side
    13,430.71x = 91,586,724.52
  5. Step 5: Solve for x
    x = 91,586,724.52/13,430.71
  6. Step 6: Final answer
    x = 6,819.20

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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.