Home / 12,702.40-19,039.96-5,301.28

Finding the Fourth Proportional to 12,702.40, 19,039.96 and 5,301.28

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Solution

The fourth proportional to 12,702.40, 19,039.96 and 5,301.28 is: 7,946.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.40 : 19,039.96 = 5,301.28 : x
  2. Step 2: Convert to fraction form
    12,702.40/19,039.96 = 5,301.28/x
  3. Step 3: Cross multiply
    12,702.40x = 19,039.96 × 5,301.28
  4. Step 4: Simplify right side
    12,702.40x = 100,936,159.15
  5. Step 5: Solve for x
    x = 100,936,159.15/12,702.40
  6. Step 6: Final answer
    x = 7,946.23

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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.