Home / 14,498.64-21,747.28-5,138.51

Finding the Fourth Proportional to 14,498.64, 21,747.28 and 5,138.51

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Solution

The fourth proportional to 14,498.64, 21,747.28 and 5,138.51 is: 7,707.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,498.64 : 21,747.28 = 5,138.51 : x
  2. Step 2: Convert to fraction form
    14,498.64/21,747.28 = 5,138.51/x
  3. Step 3: Cross multiply
    14,498.64x = 21,747.28 × 5,138.51
  4. Step 4: Simplify right side
    14,498.64x = 111,748,615.75
  5. Step 5: Solve for x
    x = 111,748,615.75/14,498.64
  6. Step 6: Final answer
    x = 7,707.52

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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.