Home / 13,553.19-18,703.80-7,584.72

Finding the Fourth Proportional to 13,553.19, 18,703.80 and 7,584.72

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Solution

The fourth proportional to 13,553.19, 18,703.80 and 7,584.72 is: 10,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.19 : 18,703.80 = 7,584.72 : x
  2. Step 2: Convert to fraction form
    13,553.19/18,703.80 = 7,584.72/x
  3. Step 3: Cross multiply
    13,553.19x = 18,703.80 × 7,584.72
  4. Step 4: Simplify right side
    13,553.19x = 141,863,085.94
  5. Step 5: Solve for x
    x = 141,863,085.94/13,553.19
  6. Step 6: Final answer
    x = 10,467.14

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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.