Home / 13,124.20-19,700.70-7,277.80

Finding the Fourth Proportional to 13,124.20, 19,700.70 and 7,277.80

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Solution

The fourth proportional to 13,124.20, 19,700.70 and 7,277.80 is: 10,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.20 : 19,700.70 = 7,277.80 : x
  2. Step 2: Convert to fraction form
    13,124.20/19,700.70 = 7,277.80/x
  3. Step 3: Cross multiply
    13,124.20x = 19,700.70 × 7,277.80
  4. Step 4: Simplify right side
    13,124.20x = 143,377,754.46
  5. Step 5: Solve for x
    x = 143,377,754.46/13,124.20
  6. Step 6: Final answer
    x = 10,924.69

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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.