Home / 13,970.76-20,955.87-4,109.82

Finding the Fourth Proportional to 13,970.76, 20,955.87 and 4,109.82

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Solution

The fourth proportional to 13,970.76, 20,955.87 and 4,109.82 is: 6,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.76 : 20,955.87 = 4,109.82 : x
  2. Step 2: Convert to fraction form
    13,970.76/20,955.87 = 4,109.82/x
  3. Step 3: Cross multiply
    13,970.76x = 20,955.87 × 4,109.82
  4. Step 4: Simplify right side
    13,970.76x = 86,124,853.64
  5. Step 5: Solve for x
    x = 86,124,853.64/13,970.76
  6. Step 6: Final answer
    x = 6,164.65

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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.