Home / 14,011.66-19,335.84-7,638.31

Finding the Fourth Proportional to 14,011.66, 19,335.84 and 7,638.31

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Solution

The fourth proportional to 14,011.66, 19,335.84 and 7,638.31 is: 10,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.66 : 19,335.84 = 7,638.31 : x
  2. Step 2: Convert to fraction form
    14,011.66/19,335.84 = 7,638.31/x
  3. Step 3: Cross multiply
    14,011.66x = 19,335.84 × 7,638.31
  4. Step 4: Simplify right side
    14,011.66x = 147,693,140.03
  5. Step 5: Solve for x
    x = 147,693,140.03/14,011.66
  6. Step 6: Final answer
    x = 10,540.73

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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.