Home / 14,011.90-19,335.84-7,638.35

Finding the Fourth Proportional to 14,011.90, 19,335.84 and 7,638.35

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Solution

The fourth proportional to 14,011.90, 19,335.84 and 7,638.35 is: 10,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.90 : 19,335.84 = 7,638.35 : x
  2. Step 2: Convert to fraction form
    14,011.90/19,335.84 = 7,638.35/x
  3. Step 3: Cross multiply
    14,011.90x = 19,335.84 × 7,638.35
  4. Step 4: Simplify right side
    14,011.90x = 147,693,913.46
  5. Step 5: Solve for x
    x = 147,693,913.46/14,011.90
  6. Step 6: Final answer
    x = 10,540.61

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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.