Home / 11,159.84-15,400.72-6,123.74

Finding the Fourth Proportional to 11,159.84, 15,400.72 and 6,123.74

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Solution

The fourth proportional to 11,159.84, 15,400.72 and 6,123.74 is: 8,450.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.84 : 15,400.72 = 6,123.74 : x
  2. Step 2: Convert to fraction form
    11,159.84/15,400.72 = 6,123.74/x
  3. Step 3: Cross multiply
    11,159.84x = 15,400.72 × 6,123.74
  4. Step 4: Simplify right side
    11,159.84x = 94,310,005.09
  5. Step 5: Solve for x
    x = 94,310,005.09/11,159.84
  6. Step 6: Final answer
    x = 8,450.84

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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.