Home / 15,698.72-21,664.40-9,733.28

Finding the Fourth Proportional to 15,698.72, 21,664.40 and 9,733.28

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Solution

The fourth proportional to 15,698.72, 21,664.40 and 9,733.28 is: 13,432.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.72 : 21,664.40 = 9,733.28 : x
  2. Step 2: Convert to fraction form
    15,698.72/21,664.40 = 9,733.28/x
  3. Step 3: Cross multiply
    15,698.72x = 21,664.40 × 9,733.28
  4. Step 4: Simplify right side
    15,698.72x = 210,865,671.23
  5. Step 5: Solve for x
    x = 210,865,671.23/15,698.72
  6. Step 6: Final answer
    x = 13,432.03

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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.