Home / 9,305.12-12,840.84-5,325.98

Finding the Fourth Proportional to 9,305.12, 12,840.84 and 5,325.98

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Solution

The fourth proportional to 9,305.12, 12,840.84 and 5,325.98 is: 7,349.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.12 : 12,840.84 = 5,325.98 : x
  2. Step 2: Convert to fraction form
    9,305.12/12,840.84 = 5,325.98/x
  3. Step 3: Cross multiply
    9,305.12x = 12,840.84 × 5,325.98
  4. Step 4: Simplify right side
    9,305.12x = 68,390,057.02
  5. Step 5: Solve for x
    x = 68,390,057.02/9,305.12
  6. Step 6: Final answer
    x = 7,349.72

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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.