Home / 13,185.59-19,778.99-7,337.79

Finding the Fourth Proportional to 13,185.59, 19,778.99 and 7,337.79

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Solution

The fourth proportional to 13,185.59, 19,778.99 and 7,337.79 is: 11,007.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.59 : 19,778.99 = 7,337.79 : x
  2. Step 2: Convert to fraction form
    13,185.59/19,778.99 = 7,337.79/x
  3. Step 3: Cross multiply
    13,185.59x = 19,778.99 × 7,337.79
  4. Step 4: Simplify right side
    13,185.59x = 145,134,038.34
  5. Step 5: Solve for x
    x = 145,134,038.34/13,185.59
  6. Step 6: Final answer
    x = 11,007.02

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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.