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Finding the Fourth Proportional to 7,515.78, 10,373.04 and 4,373.82

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Solution

The fourth proportional to 7,515.78, 10,373.04 and 4,373.82 is: 6,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.78 : 10,373.04 = 4,373.82 : x
  2. Step 2: Convert to fraction form
    7,515.78/10,373.04 = 4,373.82/x
  3. Step 3: Cross multiply
    7,515.78x = 10,373.04 × 4,373.82
  4. Step 4: Simplify right side
    7,515.78x = 45,369,809.81
  5. Step 5: Solve for x
    x = 45,369,809.81/7,515.78
  6. Step 6: Final answer
    x = 6,036.61

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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.