Home / 14,009.15-21,015.77-4,147.13

Finding the Fourth Proportional to 14,009.15, 21,015.77 and 4,147.13

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Solution

The fourth proportional to 14,009.15, 21,015.77 and 4,147.13 is: 6,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.15 : 21,015.77 = 4,147.13 : x
  2. Step 2: Convert to fraction form
    14,009.15/21,015.77 = 4,147.13/x
  3. Step 3: Cross multiply
    14,009.15x = 21,015.77 × 4,147.13
  4. Step 4: Simplify right side
    14,009.15x = 87,155,162.04
  5. Step 5: Solve for x
    x = 87,155,162.04/14,009.15
  6. Step 6: Final answer
    x = 6,221.30

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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.