Home / 15,508.97-21,390.92-9,838.83

Finding the Fourth Proportional to 15,508.97, 21,390.92 and 9,838.83

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Solution

The fourth proportional to 15,508.97, 21,390.92 and 9,838.83 is: 13,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.97 : 21,390.92 = 9,838.83 : x
  2. Step 2: Convert to fraction form
    15,508.97/21,390.92 = 9,838.83/x
  3. Step 3: Cross multiply
    15,508.97x = 21,390.92 × 9,838.83
  4. Step 4: Simplify right side
    15,508.97x = 210,461,650.02
  5. Step 5: Solve for x
    x = 210,461,650.02/15,508.97
  6. Step 6: Final answer
    x = 13,570.32

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1.5x scale

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.