Home / 13,223.96-18,244.32-7,554.64

Finding the Fourth Proportional to 13,223.96, 18,244.32 and 7,554.64

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Solution

The fourth proportional to 13,223.96, 18,244.32 and 7,554.64 is: 10,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.96 : 18,244.32 = 7,554.64 : x
  2. Step 2: Convert to fraction form
    13,223.96/18,244.32 = 7,554.64/x
  3. Step 3: Cross multiply
    13,223.96x = 18,244.32 × 7,554.64
  4. Step 4: Simplify right side
    13,223.96x = 137,829,269.64
  5. Step 5: Solve for x
    x = 137,829,269.64/13,223.96
  6. Step 6: Final answer
    x = 10,422.69

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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.