Home / 14,146.86-21,220.08-4,784.88

Finding the Fourth Proportional to 14,146.86, 21,220.08 and 4,784.88

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Solution

The fourth proportional to 14,146.86, 21,220.08 and 4,784.88 is: 7,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.86 : 21,220.08 = 4,784.88 : x
  2. Step 2: Convert to fraction form
    14,146.86/21,220.08 = 4,784.88/x
  3. Step 3: Cross multiply
    14,146.86x = 21,220.08 × 4,784.88
  4. Step 4: Simplify right side
    14,146.86x = 101,535,536.39
  5. Step 5: Solve for x
    x = 101,535,536.39/14,146.86
  6. Step 6: Final answer
    x = 7,177.25

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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.