Home / 13,490.70-18,615.84-7,522.26

Finding the Fourth Proportional to 13,490.70, 18,615.84 and 7,522.26

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Solution

The fourth proportional to 13,490.70, 18,615.84 and 7,522.26 is: 10,379.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.70 : 18,615.84 = 7,522.26 : x
  2. Step 2: Convert to fraction form
    13,490.70/18,615.84 = 7,522.26/x
  3. Step 3: Cross multiply
    13,490.70x = 18,615.84 × 7,522.26
  4. Step 4: Simplify right side
    13,490.70x = 140,033,188.60
  5. Step 5: Solve for x
    x = 140,033,188.60/13,490.70
  6. Step 6: Final answer
    x = 10,379.98

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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.