Home / 13,124.21-19,666.86-10,800.72

Finding the Fourth Proportional to 13,124.21, 19,666.86 and 10,800.72

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Solution

The fourth proportional to 13,124.21, 19,666.86 and 10,800.72 is: 16,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.21 : 19,666.86 = 10,800.72 : x
  2. Step 2: Convert to fraction form
    13,124.21/19,666.86 = 10,800.72/x
  3. Step 3: Cross multiply
    13,124.21x = 19,666.86 × 10,800.72
  4. Step 4: Simplify right side
    13,124.21x = 212,416,207.64
  5. Step 5: Solve for x
    x = 212,416,207.64/13,124.21
  6. Step 6: Final answer
    x = 16,185.07

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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.