Home / 14,131.55-21,218.14-7,903.77

Finding the Fourth Proportional to 14,131.55, 21,218.14 and 7,903.77

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Solution

The fourth proportional to 14,131.55, 21,218.14 and 7,903.77 is: 11,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.55 : 21,218.14 = 7,903.77 : x
  2. Step 2: Convert to fraction form
    14,131.55/21,218.14 = 7,903.77/x
  3. Step 3: Cross multiply
    14,131.55x = 21,218.14 × 7,903.77
  4. Step 4: Simplify right side
    14,131.55x = 167,703,298.39
  5. Step 5: Solve for x
    x = 167,703,298.39/14,131.55
  6. Step 6: Final answer
    x = 11,867.30

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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.