Home / 9,280.17-12,783.02-8,667.81

Finding the Fourth Proportional to 9,280.17, 12,783.02 and 8,667.81

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Solution

The fourth proportional to 9,280.17, 12,783.02 and 8,667.81 is: 11,939.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280.17 : 12,783.02 = 8,667.81 : x
  2. Step 2: Convert to fraction form
    9,280.17/12,783.02 = 8,667.81/x
  3. Step 3: Cross multiply
    9,280.17x = 12,783.02 × 8,667.81
  4. Step 4: Simplify right side
    9,280.17x = 110,800,745.25
  5. Step 5: Solve for x
    x = 110,800,745.25/9,280.17
  6. Step 6: Final answer
    x = 11,939.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.