Home / 9,208.38-12,706.99-5,431.70

Finding the Fourth Proportional to 9,208.38, 12,706.99 and 5,431.70

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Solution

The fourth proportional to 9,208.38, 12,706.99 and 5,431.70 is: 7,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,208.38 : 12,706.99 = 5,431.70 : x
  2. Step 2: Convert to fraction form
    9,208.38/12,706.99 = 5,431.70/x
  3. Step 3: Cross multiply
    9,208.38x = 12,706.99 × 5,431.70
  4. Step 4: Simplify right side
    9,208.38x = 69,020,575.77
  5. Step 5: Solve for x
    x = 69,020,575.77/9,208.38
  6. Step 6: Final answer
    x = 7,495.41

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Half scale
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Double scale
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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.