Home / 13,970.83-20,959.18-4,109.28

Finding the Fourth Proportional to 13,970.83, 20,959.18 and 4,109.28

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Solution

The fourth proportional to 13,970.83, 20,959.18 and 4,109.28 is: 6,164.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.83 : 20,959.18 = 4,109.28 : x
  2. Step 2: Convert to fraction form
    13,970.83/20,959.18 = 4,109.28/x
  3. Step 3: Cross multiply
    13,970.83x = 20,959.18 × 4,109.28
  4. Step 4: Simplify right side
    13,970.83x = 86,127,139.19
  5. Step 5: Solve for x
    x = 86,127,139.19/13,970.83
  6. Step 6: Final answer
    x = 6,164.78

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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.