Home / 15,226.53-21,012.53-8,512.17

Finding the Fourth Proportional to 15,226.53, 21,012.53 and 8,512.17

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Solution

The fourth proportional to 15,226.53, 21,012.53 and 8,512.17 is: 11,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.53 : 21,012.53 = 8,512.17 : x
  2. Step 2: Convert to fraction form
    15,226.53/21,012.53 = 8,512.17/x
  3. Step 3: Cross multiply
    15,226.53x = 21,012.53 × 8,512.17
  4. Step 4: Simplify right side
    15,226.53x = 178,862,184.93
  5. Step 5: Solve for x
    x = 178,862,184.93/15,226.53
  6. Step 6: Final answer
    x = 11,746.75

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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.