Home / 9,987.84-13,783.92-6,624.96

Finding the Fourth Proportional to 9,987.84, 13,783.92 and 6,624.96

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Solution

The fourth proportional to 9,987.84, 13,783.92 and 6,624.96 is: 9,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.84 : 13,783.92 = 6,624.96 : x
  2. Step 2: Convert to fraction form
    9,987.84/13,783.92 = 6,624.96/x
  3. Step 3: Cross multiply
    9,987.84x = 13,783.92 × 6,624.96
  4. Step 4: Simplify right side
    9,987.84x = 91,317,918.64
  5. Step 5: Solve for x
    x = 91,317,918.64/9,987.84
  6. Step 6: Final answer
    x = 9,142.91

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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.