Home / 13,522.91-18,661.66-7,554.81

Finding the Fourth Proportional to 13,522.91, 18,661.66 and 7,554.81

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Solution

The fourth proportional to 13,522.91, 18,661.66 and 7,554.81 is: 10,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.91 : 18,661.66 = 7,554.81 : x
  2. Step 2: Convert to fraction form
    13,522.91/18,661.66 = 7,554.81/x
  3. Step 3: Cross multiply
    13,522.91x = 18,661.66 × 7,554.81
  4. Step 4: Simplify right side
    13,522.91x = 140,985,295.58
  5. Step 5: Solve for x
    x = 140,985,295.58/13,522.91
  6. Step 6: Final answer
    x = 10,425.66

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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.