Home / 13,975.55-19,288.98-8,011.20

Finding the Fourth Proportional to 13,975.55, 19,288.98 and 8,011.20

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Solution

The fourth proportional to 13,975.55, 19,288.98 and 8,011.20 is: 11,057.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.55 : 19,288.98 = 8,011.20 : x
  2. Step 2: Convert to fraction form
    13,975.55/19,288.98 = 8,011.20/x
  3. Step 3: Cross multiply
    13,975.55x = 19,288.98 × 8,011.20
  4. Step 4: Simplify right side
    13,975.55x = 154,527,876.58
  5. Step 5: Solve for x
    x = 154,527,876.58/13,975.55
  6. Step 6: Final answer
    x = 11,057.02

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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.