Home / 9,206.15-12,705-5,431.53

Finding the Fourth Proportional to 9,206.15, 12,705 and 5,431.53

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Solution

The fourth proportional to 9,206.15, 12,705 and 5,431.53 is: 7,495.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.15 : 12,705 = 5,431.53 : x
  2. Step 2: Convert to fraction form
    9,206.15/12,705 = 5,431.53/x
  3. Step 3: Cross multiply
    9,206.15x = 12,705 × 5,431.53
  4. Step 4: Simplify right side
    9,206.15x = 69,007,588.65
  5. Step 5: Solve for x
    x = 69,007,588.65/9,206.15
  6. Step 6: Final answer
    x = 7,495.81

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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.