Home / 8,315.52-12,475.77-5,355.24

Finding the Fourth Proportional to 8,315.52, 12,475.77 and 5,355.24

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Solution

The fourth proportional to 8,315.52, 12,475.77 and 5,355.24 is: 8,034.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.52 : 12,475.77 = 5,355.24 : x
  2. Step 2: Convert to fraction form
    8,315.52/12,475.77 = 5,355.24/x
  3. Step 3: Cross multiply
    8,315.52x = 12,475.77 × 5,355.24
  4. Step 4: Simplify right side
    8,315.52x = 66,810,742.53
  5. Step 5: Solve for x
    x = 66,810,742.53/8,315.52
  6. Step 6: Final answer
    x = 8,034.46

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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.