Home / 6,315.42-9,473.81-5,155.85

Finding the Fourth Proportional to 6,315.42, 9,473.81 and 5,155.85

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Solution

The fourth proportional to 6,315.42, 9,473.81 and 5,155.85 is: 7,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.42 : 9,473.81 = 5,155.85 : x
  2. Step 2: Convert to fraction form
    6,315.42/9,473.81 = 5,155.85/x
  3. Step 3: Cross multiply
    6,315.42x = 9,473.81 × 5,155.85
  4. Step 4: Simplify right side
    6,315.42x = 48,845,570.20
  5. Step 5: Solve for x
    x = 48,845,570.20/6,315.42
  6. Step 6: Final answer
    x = 7,734.34

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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.