Home / 13,013.60-19,520.40-4,246.40

Finding the Fourth Proportional to 13,013.60, 19,520.40 and 4,246.40

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Solution

The fourth proportional to 13,013.60, 19,520.40 and 4,246.40 is: 6,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.60 : 19,520.40 = 4,246.40 : x
  2. Step 2: Convert to fraction form
    13,013.60/19,520.40 = 4,246.40/x
  3. Step 3: Cross multiply
    13,013.60x = 19,520.40 × 4,246.40
  4. Step 4: Simplify right side
    13,013.60x = 82,891,426.56
  5. Step 5: Solve for x
    x = 82,891,426.56/13,013.60
  6. Step 6: Final answer
    x = 6,369.60

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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.