Home / 15,908.74-21,950.58-9,620.98

Finding the Fourth Proportional to 15,908.74, 21,950.58 and 9,620.98

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Solution

The fourth proportional to 15,908.74, 21,950.58 and 9,620.98 is: 13,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.74 : 21,950.58 = 9,620.98 : x
  2. Step 2: Convert to fraction form
    15,908.74/21,950.58 = 9,620.98/x
  3. Step 3: Cross multiply
    15,908.74x = 21,950.58 × 9,620.98
  4. Step 4: Simplify right side
    15,908.74x = 211,186,091.17
  5. Step 5: Solve for x
    x = 211,186,091.17/15,908.74
  6. Step 6: Final answer
    x = 13,274.85

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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.