Home / 13,521.46-18,660.34-7,553.26

Finding the Fourth Proportional to 13,521.46, 18,660.34 and 7,553.26

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Solution

The fourth proportional to 13,521.46, 18,660.34 and 7,553.26 is: 10,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.46 : 18,660.34 = 7,553.26 : x
  2. Step 2: Convert to fraction form
    13,521.46/18,660.34 = 7,553.26/x
  3. Step 3: Cross multiply
    13,521.46x = 18,660.34 × 7,553.26
  4. Step 4: Simplify right side
    13,521.46x = 140,946,399.71
  5. Step 5: Solve for x
    x = 140,946,399.71/13,521.46
  6. Step 6: Final answer
    x = 10,423.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.