Home / 15,297.66-21,111.84-9,013.68

Finding the Fourth Proportional to 15,297.66, 21,111.84 and 9,013.68

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Solution

The fourth proportional to 15,297.66, 21,111.84 and 9,013.68 is: 12,439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.66 : 21,111.84 = 9,013.68 : x
  2. Step 2: Convert to fraction form
    15,297.66/21,111.84 = 9,013.68/x
  3. Step 3: Cross multiply
    15,297.66x = 21,111.84 × 9,013.68
  4. Step 4: Simplify right side
    15,297.66x = 190,295,369.97
  5. Step 5: Solve for x
    x = 190,295,369.97/15,297.66
  6. Step 6: Final answer
    x = 12,439.51

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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.