Home / 7,576.32-10,456.80-4,220.16

Finding the Fourth Proportional to 7,576.32, 10,456.80 and 4,220.16

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Solution

The fourth proportional to 7,576.32, 10,456.80 and 4,220.16 is: 5,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,576.32 : 10,456.80 = 4,220.16 : x
  2. Step 2: Convert to fraction form
    7,576.32/10,456.80 = 4,220.16/x
  3. Step 3: Cross multiply
    7,576.32x = 10,456.80 × 4,220.16
  4. Step 4: Simplify right side
    7,576.32x = 44,129,369.09
  5. Step 5: Solve for x
    x = 44,129,369.09/7,576.32
  6. Step 6: Final answer
    x = 5,824.64

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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.