Home / 10,278.10-15,407.88-3,699.64

Finding the Fourth Proportional to 10,278.10, 15,407.88 and 3,699.64

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Solution

The fourth proportional to 10,278.10, 15,407.88 and 3,699.64 is: 5,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.10 : 15,407.88 = 3,699.64 : x
  2. Step 2: Convert to fraction form
    10,278.10/15,407.88 = 3,699.64/x
  3. Step 3: Cross multiply
    10,278.10x = 15,407.88 × 3,699.64
  4. Step 4: Simplify right side
    10,278.10x = 57,003,609.16
  5. Step 5: Solve for x
    x = 57,003,609.16/10,278.10
  6. Step 6: Final answer
    x = 5,546.12

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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.