Home / 7,670.06-11,505.09-2,123.40

Finding the Fourth Proportional to 7,670.06, 11,505.09 and 2,123.40

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Solution

The fourth proportional to 7,670.06, 11,505.09 and 2,123.40 is: 3,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.06 : 11,505.09 = 2,123.40 : x
  2. Step 2: Convert to fraction form
    7,670.06/11,505.09 = 2,123.40/x
  3. Step 3: Cross multiply
    7,670.06x = 11,505.09 × 2,123.40
  4. Step 4: Simplify right side
    7,670.06x = 24,429,908.11
  5. Step 5: Solve for x
    x = 24,429,908.11/7,670.06
  6. Step 6: Final answer
    x = 3,185.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.