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Finding the Fourth Proportional to 9,987.84, 14,984.73 and 4,440.42

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Solution

The fourth proportional to 9,987.84, 14,984.73 and 4,440.42 is: 6,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.84 : 14,984.73 = 4,440.42 : x
  2. Step 2: Convert to fraction form
    9,987.84/14,984.73 = 4,440.42/x
  3. Step 3: Cross multiply
    9,987.84x = 14,984.73 × 4,440.42
  4. Step 4: Simplify right side
    9,987.84x = 66,538,494.79
  5. Step 5: Solve for x
    x = 66,538,494.79/9,987.84
  6. Step 6: Final answer
    x = 6,661.95

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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.