Home / 11,927.84-16,476.72-9,687.20

Finding the Fourth Proportional to 11,927.84, 16,476.72 and 9,687.20

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Solution

The fourth proportional to 11,927.84, 16,476.72 and 9,687.20 is: 13,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.84 : 16,476.72 = 9,687.20 : x
  2. Step 2: Convert to fraction form
    11,927.84/16,476.72 = 9,687.20/x
  3. Step 3: Cross multiply
    11,927.84x = 16,476.72 × 9,687.20
  4. Step 4: Simplify right side
    11,927.84x = 159,613,281.98
  5. Step 5: Solve for x
    x = 159,613,281.98/11,927.84
  6. Step 6: Final answer
    x = 13,381.57

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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.