Home / 13,154.70-19,733.31-4,390.23

Finding the Fourth Proportional to 13,154.70, 19,733.31 and 4,390.23

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Solution

The fourth proportional to 13,154.70, 19,733.31 and 4,390.23 is: 6,585.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.70 : 19,733.31 = 4,390.23 : x
  2. Step 2: Convert to fraction form
    13,154.70/19,733.31 = 4,390.23/x
  3. Step 3: Cross multiply
    13,154.70x = 19,733.31 × 4,390.23
  4. Step 4: Simplify right side
    13,154.70x = 86,633,769.56
  5. Step 5: Solve for x
    x = 86,633,769.56/13,154.70
  6. Step 6: Final answer
    x = 6,585.77

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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.