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Finding the Fourth Proportional to 9,318.56, 12,857.06 and 6,482.75

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Solution

The fourth proportional to 9,318.56, 12,857.06 and 6,482.75 is: 8,944.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.56 : 12,857.06 = 6,482.75 : x
  2. Step 2: Convert to fraction form
    9,318.56/12,857.06 = 6,482.75/x
  3. Step 3: Cross multiply
    9,318.56x = 12,857.06 × 6,482.75
  4. Step 4: Simplify right side
    9,318.56x = 83,349,009.02
  5. Step 5: Solve for x
    x = 83,349,009.02/9,318.56
  6. Step 6: Final answer
    x = 8,944.41

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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.