Home / 8,187.68-12,284.56-4,903.12

Finding the Fourth Proportional to 8,187.68, 12,284.56 and 4,903.12

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Solution

The fourth proportional to 8,187.68, 12,284.56 and 4,903.12 is: 7,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.68 : 12,284.56 = 4,903.12 : x
  2. Step 2: Convert to fraction form
    8,187.68/12,284.56 = 4,903.12/x
  3. Step 3: Cross multiply
    8,187.68x = 12,284.56 × 4,903.12
  4. Step 4: Simplify right side
    8,187.68x = 60,232,671.83
  5. Step 5: Solve for x
    x = 60,232,671.83/8,187.68
  6. Step 6: Final answer
    x = 7,356.50

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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.