Home / 9,331.64-12,876.81-5,554.21

Finding the Fourth Proportional to 9,331.64, 12,876.81 and 5,554.21

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Solution

The fourth proportional to 9,331.64, 12,876.81 and 5,554.21 is: 7,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.64 : 12,876.81 = 5,554.21 : x
  2. Step 2: Convert to fraction form
    9,331.64/12,876.81 = 5,554.21/x
  3. Step 3: Cross multiply
    9,331.64x = 12,876.81 × 5,554.21
  4. Step 4: Simplify right side
    9,331.64x = 71,520,483.32
  5. Step 5: Solve for x
    x = 71,520,483.32/9,331.64
  6. Step 6: Final answer
    x = 7,664.30

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Double scale
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Similar ratio
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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.