Home / 15,326.49-21,150.54-8,957.46

Finding the Fourth Proportional to 15,326.49, 21,150.54 and 8,957.46

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Solution

The fourth proportional to 15,326.49, 21,150.54 and 8,957.46 is: 12,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.49 : 21,150.54 = 8,957.46 : x
  2. Step 2: Convert to fraction form
    15,326.49/21,150.54 = 8,957.46/x
  3. Step 3: Cross multiply
    15,326.49x = 21,150.54 × 8,957.46
  4. Step 4: Simplify right side
    15,326.49x = 189,455,116.03
  5. Step 5: Solve for x
    x = 189,455,116.03/15,326.49
  6. Step 6: Final answer
    x = 12,361.29

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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.