Home / 13,459.79-20,189.76-4,694.71

Finding the Fourth Proportional to 13,459.79, 20,189.76 and 4,694.71

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Solution

The fourth proportional to 13,459.79, 20,189.76 and 4,694.71 is: 7,042.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.79 : 20,189.76 = 4,694.71 : x
  2. Step 2: Convert to fraction form
    13,459.79/20,189.76 = 4,694.71/x
  3. Step 3: Cross multiply
    13,459.79x = 20,189.76 × 4,694.71
  4. Step 4: Simplify right side
    13,459.79x = 94,785,017.70
  5. Step 5: Solve for x
    x = 94,785,017.70/13,459.79
  6. Step 6: Final answer
    x = 7,042.09

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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.