Home / 6,407.12-9,615.54-4,431.53

Finding the Fourth Proportional to 6,407.12, 9,615.54 and 4,431.53

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Solution

The fourth proportional to 6,407.12, 9,615.54 and 4,431.53 is: 6,650.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,407.12 : 9,615.54 = 4,431.53 : x
  2. Step 2: Convert to fraction form
    6,407.12/9,615.54 = 4,431.53/x
  3. Step 3: Cross multiply
    6,407.12x = 9,615.54 × 4,431.53
  4. Step 4: Simplify right side
    6,407.12x = 42,611,505.90
  5. Step 5: Solve for x
    x = 42,611,505.90/6,407.12
  6. Step 6: Final answer
    x = 6,650.65

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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.