Home / 13,479.15-20,210.29-4,116.05

Finding the Fourth Proportional to 13,479.15, 20,210.29 and 4,116.05

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Solution

The fourth proportional to 13,479.15, 20,210.29 and 4,116.05 is: 6,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.15 : 20,210.29 = 4,116.05 : x
  2. Step 2: Convert to fraction form
    13,479.15/20,210.29 = 4,116.05/x
  3. Step 3: Cross multiply
    13,479.15x = 20,210.29 × 4,116.05
  4. Step 4: Simplify right side
    13,479.15x = 83,186,564.15
  5. Step 5: Solve for x
    x = 83,186,564.15/13,479.15
  6. Step 6: Final answer
    x = 6,171.50

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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.