Home / 9,305.46-12,840.39-5,528.70

Finding the Fourth Proportional to 9,305.46, 12,840.39 and 5,528.70

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Solution

The fourth proportional to 9,305.46, 12,840.39 and 5,528.70 is: 7,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.46 : 12,840.39 = 5,528.70 : x
  2. Step 2: Convert to fraction form
    9,305.46/12,840.39 = 5,528.70/x
  3. Step 3: Cross multiply
    9,305.46x = 12,840.39 × 5,528.70
  4. Step 4: Simplify right side
    9,305.46x = 70,990,664.19
  5. Step 5: Solve for x
    x = 70,990,664.19/9,305.46
  6. Step 6: Final answer
    x = 7,628.93

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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.