Home / 12,821.64-19,240.56-5,030.28

Finding the Fourth Proportional to 12,821.64, 19,240.56 and 5,030.28

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Solution

The fourth proportional to 12,821.64, 19,240.56 and 5,030.28 is: 7,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.64 : 19,240.56 = 5,030.28 : x
  2. Step 2: Convert to fraction form
    12,821.64/19,240.56 = 5,030.28/x
  3. Step 3: Cross multiply
    12,821.64x = 19,240.56 × 5,030.28
  4. Step 4: Simplify right side
    12,821.64x = 96,785,404.16
  5. Step 5: Solve for x
    x = 96,785,404.16/12,821.64
  6. Step 6: Final answer
    x = 7,548.60

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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.