Home / 14,011.55-19,335.67-7,638.20

Finding the Fourth Proportional to 14,011.55, 19,335.67 and 7,638.20

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Solution

The fourth proportional to 14,011.55, 19,335.67 and 7,638.20 is: 10,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.55 : 19,335.67 = 7,638.20 : x
  2. Step 2: Convert to fraction form
    14,011.55/19,335.67 = 7,638.20/x
  3. Step 3: Cross multiply
    14,011.55x = 19,335.67 × 7,638.20
  4. Step 4: Simplify right side
    14,011.55x = 147,689,714.59
  5. Step 5: Solve for x
    x = 147,689,714.59/14,011.55
  6. Step 6: Final answer
    x = 10,540.57

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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.