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Finding the Fourth Proportional to 11,079.84, 16,602.08 and 7,754.40

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Solution

The fourth proportional to 11,079.84, 16,602.08 and 7,754.40 is: 11,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.84 : 16,602.08 = 7,754.40 : x
  2. Step 2: Convert to fraction form
    11,079.84/16,602.08 = 7,754.40/x
  3. Step 3: Cross multiply
    11,079.84x = 16,602.08 × 7,754.40
  4. Step 4: Simplify right side
    11,079.84x = 128,739,169.15
  5. Step 5: Solve for x
    x = 128,739,169.15/11,079.84
  6. Step 6: Final answer
    x = 11,619.23

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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.