Home / 13,011.17-19,500.55-6,767.89

Finding the Fourth Proportional to 13,011.17, 19,500.55 and 6,767.89

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Solution

The fourth proportional to 13,011.17, 19,500.55 and 6,767.89 is: 10,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.17 : 19,500.55 = 6,767.89 : x
  2. Step 2: Convert to fraction form
    13,011.17/19,500.55 = 6,767.89/x
  3. Step 3: Cross multiply
    13,011.17x = 19,500.55 × 6,767.89
  4. Step 4: Simplify right side
    13,011.17x = 131,977,511.67
  5. Step 5: Solve for x
    x = 131,977,511.67/13,011.17
  6. Step 6: Final answer
    x = 10,143.40

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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.