Home / 7,910.61-11,867.71-4,210.89

Finding the Fourth Proportional to 7,910.61, 11,867.71 and 4,210.89

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Solution

The fourth proportional to 7,910.61, 11,867.71 and 4,210.89 is: 6,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.61 : 11,867.71 = 4,210.89 : x
  2. Step 2: Convert to fraction form
    7,910.61/11,867.71 = 4,210.89/x
  3. Step 3: Cross multiply
    7,910.61x = 11,867.71 × 4,210.89
  4. Step 4: Simplify right side
    7,910.61x = 49,973,621.36
  5. Step 5: Solve for x
    x = 49,973,621.36/7,910.61
  6. Step 6: Final answer
    x = 6,317.29

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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.