Home / 13,381.55-18,466.60-7,560.68

Finding the Fourth Proportional to 13,381.55, 18,466.60 and 7,560.68

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Solution

The fourth proportional to 13,381.55, 18,466.60 and 7,560.68 is: 10,433.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.55 : 18,466.60 = 7,560.68 : x
  2. Step 2: Convert to fraction form
    13,381.55/18,466.60 = 7,560.68/x
  3. Step 3: Cross multiply
    13,381.55x = 18,466.60 × 7,560.68
  4. Step 4: Simplify right side
    13,381.55x = 139,620,053.29
  5. Step 5: Solve for x
    x = 139,620,053.29/13,381.55
  6. Step 6: Final answer
    x = 10,433.78

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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.