Home / 15,434.88-21,300.48-9,144.96

Finding the Fourth Proportional to 15,434.88, 21,300.48 and 9,144.96

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Solution

The fourth proportional to 15,434.88, 21,300.48 and 9,144.96 is: 12,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.88 : 21,300.48 = 9,144.96 : x
  2. Step 2: Convert to fraction form
    15,434.88/21,300.48 = 9,144.96/x
  3. Step 3: Cross multiply
    15,434.88x = 21,300.48 × 9,144.96
  4. Step 4: Simplify right side
    15,434.88x = 194,792,037.58
  5. Step 5: Solve for x
    x = 194,792,037.58/15,434.88
  6. Step 6: Final answer
    x = 12,620.25

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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.