Home / 11,864.63-16,373.46-7,680.17

Finding the Fourth Proportional to 11,864.63, 16,373.46 and 7,680.17

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Solution

The fourth proportional to 11,864.63, 16,373.46 and 7,680.17 is: 10,598.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,864.63 : 16,373.46 = 7,680.17 : x
  2. Step 2: Convert to fraction form
    11,864.63/16,373.46 = 7,680.17/x
  3. Step 3: Cross multiply
    11,864.63x = 16,373.46 × 7,680.17
  4. Step 4: Simplify right side
    11,864.63x = 125,750,874.42
  5. Step 5: Solve for x
    x = 125,750,874.42/11,864.63
  6. Step 6: Final answer
    x = 10,598.81

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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.