Home / 10,385.64-15,554.10-5,104.20

Finding the Fourth Proportional to 10,385.64, 15,554.10 and 5,104.20

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Solution

The fourth proportional to 10,385.64, 15,554.10 and 5,104.20 is: 7,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.64 : 15,554.10 = 5,104.20 : x
  2. Step 2: Convert to fraction form
    10,385.64/15,554.10 = 5,104.20/x
  3. Step 3: Cross multiply
    10,385.64x = 15,554.10 × 5,104.20
  4. Step 4: Simplify right side
    10,385.64x = 79,391,237.22
  5. Step 5: Solve for x
    x = 79,391,237.22/10,385.64
  6. Step 6: Final answer
    x = 7,644.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.