Home / 13,013.40-19,520.10-4,694.70

Finding the Fourth Proportional to 13,013.40, 19,520.10 and 4,694.70

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Solution

The fourth proportional to 13,013.40, 19,520.10 and 4,694.70 is: 7,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.40 : 19,520.10 = 4,694.70 : x
  2. Step 2: Convert to fraction form
    13,013.40/19,520.10 = 4,694.70/x
  3. Step 3: Cross multiply
    13,013.40x = 19,520.10 × 4,694.70
  4. Step 4: Simplify right side
    13,013.40x = 91,641,013.47
  5. Step 5: Solve for x
    x = 91,641,013.47/13,013.40
  6. Step 6: Final answer
    x = 7,042.05

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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.