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Finding the Fourth Proportional to 13,050.15, 18,010.08 and 7,384.89

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Solution

The fourth proportional to 13,050.15, 18,010.08 and 7,384.89 is: 10,191.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.15 : 18,010.08 = 7,384.89 : x
  2. Step 2: Convert to fraction form
    13,050.15/18,010.08 = 7,384.89/x
  3. Step 3: Cross multiply
    13,050.15x = 18,010.08 × 7,384.89
  4. Step 4: Simplify right side
    13,050.15x = 133,002,459.69
  5. Step 5: Solve for x
    x = 133,002,459.69/13,050.15
  6. Step 6: Final answer
    x = 10,191.64

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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.