Home / 12,821.44-19,232.16-5,031.76

Finding the Fourth Proportional to 12,821.44, 19,232.16 and 5,031.76

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Solution

The fourth proportional to 12,821.44, 19,232.16 and 5,031.76 is: 7,547.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.44 : 19,232.16 = 5,031.76 : x
  2. Step 2: Convert to fraction form
    12,821.44/19,232.16 = 5,031.76/x
  3. Step 3: Cross multiply
    12,821.44x = 19,232.16 × 5,031.76
  4. Step 4: Simplify right side
    12,821.44x = 96,771,613.40
  5. Step 5: Solve for x
    x = 96,771,613.40/12,821.44
  6. Step 6: Final answer
    x = 7,547.64

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.