Home / 15,326.74-21,150.88-8,957.71

Finding the Fourth Proportional to 15,326.74, 21,150.88 and 8,957.71

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Solution

The fourth proportional to 15,326.74, 21,150.88 and 8,957.71 is: 12,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.74 : 21,150.88 = 8,957.71 : x
  2. Step 2: Convert to fraction form
    15,326.74/21,150.88 = 8,957.71/x
  3. Step 3: Cross multiply
    15,326.74x = 21,150.88 × 8,957.71
  4. Step 4: Simplify right side
    15,326.74x = 189,463,449.28
  5. Step 5: Solve for x
    x = 189,463,449.28/15,326.74
  6. Step 6: Final answer
    x = 12,361.63

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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.