Home / 13,005.70-19,510.61-4,238.60

Finding the Fourth Proportional to 13,005.70, 19,510.61 and 4,238.60

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Solution

The fourth proportional to 13,005.70, 19,510.61 and 4,238.60 is: 6,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.70 : 19,510.61 = 4,238.60 : x
  2. Step 2: Convert to fraction form
    13,005.70/19,510.61 = 4,238.60/x
  3. Step 3: Cross multiply
    13,005.70x = 19,510.61 × 4,238.60
  4. Step 4: Simplify right side
    13,005.70x = 82,697,552.80
  5. Step 5: Solve for x
    x = 82,697,552.80/13,005.70
  6. Step 6: Final answer
    x = 6,358.56

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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.