Home / 9,919.40-13,677.56-6,329.58

Finding the Fourth Proportional to 9,919.40, 13,677.56 and 6,329.58

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Solution

The fourth proportional to 9,919.40, 13,677.56 and 6,329.58 is: 8,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.40 : 13,677.56 = 6,329.58 : x
  2. Step 2: Convert to fraction form
    9,919.40/13,677.56 = 6,329.58/x
  3. Step 3: Cross multiply
    9,919.40x = 13,677.56 × 6,329.58
  4. Step 4: Simplify right side
    9,919.40x = 86,573,210.22
  5. Step 5: Solve for x
    x = 86,573,210.22/9,919.40
  6. Step 6: Final answer
    x = 8,727.67

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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.