Home / 13,445.41-18,555.11-7,395.91

Finding the Fourth Proportional to 13,445.41, 18,555.11 and 7,395.91

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Solution

The fourth proportional to 13,445.41, 18,555.11 and 7,395.91 is: 10,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.41 : 18,555.11 = 7,395.91 : x
  2. Step 2: Convert to fraction form
    13,445.41/18,555.11 = 7,395.91/x
  3. Step 3: Cross multiply
    13,445.41x = 18,555.11 × 7,395.91
  4. Step 4: Simplify right side
    13,445.41x = 137,231,874.78
  5. Step 5: Solve for x
    x = 137,231,874.78/13,445.41
  6. Step 6: Final answer
    x = 10,206.60

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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.