Home / 8,772.02-13,155.44-4,768.78

Finding the Fourth Proportional to 8,772.02, 13,155.44 and 4,768.78

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Solution

The fourth proportional to 8,772.02, 13,155.44 and 4,768.78 is: 7,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.02 : 13,155.44 = 4,768.78 : x
  2. Step 2: Convert to fraction form
    8,772.02/13,155.44 = 4,768.78/x
  3. Step 3: Cross multiply
    8,772.02x = 13,155.44 × 4,768.78
  4. Step 4: Simplify right side
    8,772.02x = 62,735,399.16
  5. Step 5: Solve for x
    x = 62,735,399.16/8,772.02
  6. Step 6: Final answer
    x = 7,151.76

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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.