Home / 14,412.28-19,888.80-8,126.68

Finding the Fourth Proportional to 14,412.28, 19,888.80 and 8,126.68

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Solution

The fourth proportional to 14,412.28, 19,888.80 and 8,126.68 is: 11,214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.28 : 19,888.80 = 8,126.68 : x
  2. Step 2: Convert to fraction form
    14,412.28/19,888.80 = 8,126.68/x
  3. Step 3: Cross multiply
    14,412.28x = 19,888.80 × 8,126.68
  4. Step 4: Simplify right side
    14,412.28x = 161,629,913.18
  5. Step 5: Solve for x
    x = 161,629,913.18/14,412.28
  6. Step 6: Final answer
    x = 11,214.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.